| Subject | Date Asked |
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| science | 11/18/2009 |
Q: What is chromatography??
A: Look it up on wikipedia. It's the way to separate a chemical (like ink) into the parts that make it ...
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| heat | 11/17/2009 |
Q: If I do a science experiment by placing hot boiled eggs in 2 seperate containers, 1 lined by foil ...
A: 1. Why does skin tan in the sun? People's skin has melanin in it. Melanin is a dark brown ...
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| science learning age | 11/12/2009 |
Q: what is the right age to start teaching science stuff?and what will it be about?
A: Before a kid is one year old. When a kid asks "why", tell them why, using simple language. Forget ...
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| chromatography | 11/10/2009 |
Q: at my school a science fair is going to happen in march and we have started preparing what we are ...
A: Chromatography is a great project for a 9-th grader. There are many, many other fun science ...
|
| chromatography | 11/10/2009 |
Q: at my school a science fair is going to happen in march and we have started preparing what we are ...
A: Some kinds of markers use water-soluble ink. Others do not. If you want to use water, make sure to ...
|
| chromatography | 11/10/2009 |
Q: at my school a science fair is going to happen in march and we have started preparing what we are ...
A: For chromatography, you are dissolving different chemicals in a solvent, or more than one solvent. ...
|
| Egg Drop | 10/27/2009 |
Q: My class is having a egg drop and we need to drop it from 2 meters I only have a limited supply: ...
A: Experiment with a hard-boiled egg. Try to build something to surround the egg to absorb energy so ...
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| Cup of Water Heater | 10/21/2009 |
Q: First of all thanks for you to giving me this opertunity, I would like to heat a cup of tea with a ...
A: I never heard of a batter heater. Do you want to use a battery to heat a cup of tea? If so, get a ...
|
| encourage children to express their likes and dislikes | 10/20/2009 |
Q: Please, why it is important to encourage children to express their likes and dislikes? and why is it ...
A: Everyone will give you a different answer for this one. I believe that kids should be encouraged to ...
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| Biology Grade 11 | 10/16/2009 |
Q: IM having a bio quiz next class soon 12:00 pm and I have a question How to describe indenpent ...
A: The independent variable is the one you are changing. The dependent variable is the one that reacts ...
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| carbonation | 10/9/2009 |
Q: I am working on a science project and trying to find out how to figure out the amount of carbonation ...
A: Here's the idea. There is gas dissolved in the soda. Get three different bottles of soda, all the ...
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| science | 10/8/2009 |
Q: We are doing and egg drop for science at school. Our materials are: a piece of the age newspaper 6 ...
A: The goal is to protect the egg so it won't break. There is no "right" way or "wrong" way to ...
|
| thermal energy | 9/24/2009 |
Q: 1.explain how energy moves when you touch a block of ice with your hand. 2.describe how the thermal ...
A: 1. Heat energy flows from hot items to cold items, so it flows from your hand to the ice. 2. Hot ...
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| water | 9/23/2009 |
Q: tryin to figure out what evaporates quicker..flavored or non flavored water?
A: No idea - try the experiment and find out yourself! I will guess what the answer might be. I guess ...
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| discoveries made by children | 9/15/2009 |
Q: Is it true or false that children all over the world have made scientific discoveries? If so can you ...
A: Every young child makes scientific discoveries every day. That's how they learn. They make an ...
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| Is the truth reasonable and understandable? | 9/12/2009 |
Q: I am disturb by the truth of human perception of life and world, that is different from what I ...
A: For millions of years, people thought the stars in the sky were gods, teardrops, or other magical ...
|
| Electricity | 9/8/2009 |
Q: Sir please tell me that how much gas, coal and oil is required to produce a megawatt.
A: In a typical traditional steam power plant, to generate a megawatt of electricity for one hour, ...
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| science fair | 9/4/2009 |
Q: I'm a middle school teacher facilitating student preparation for a science research project. One ...
A: Happy to help. I'm an MIT graduate with degrees in mechanical engineering and electrical ...
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| electricity | 8/31/2009 |
Q: Can i generate electricity using permanent magnets? If so, how?
A: The electricity you use in your house is generated using permanent magnets. It's easy to build a ...
|
| how to build a solar powered hat fan | 8/2/2009 |
Q: My son is a 9 years old cub scout. For an useful but related to engineer-craft project, he wants to ...
A: 1. buy a small solar panel. Don't get a "naked" panel, since they are very fragile and have sharp ...
|
| physics | 7/21/2009 |
Q: Is there gravity in water?
A: If you want to see gravity working in water, drop something dense, like a coin, into water. Gravity ...
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| sundials | 6/26/2009 |
Q: at our school we have about 10 acres and we have a nature/garden club. We are wanting to create a ...
A: Don't know if you're in a part of Arizona that has saguaros, but a saguaro would make a fun gnomon ...
|
| Preventing the corrosion of Iron (Multiple Choice Question- Grade 12 Canada) | 6/17/2009 |
Q: To slow the corrosion of iron you could ***. a connect it to a piece of lead b wrap tin around it ...
A: Is iron electronegative or electropositive? Put another way, does iron have a positive or negative ...
|
| Industrial nitrogen and the carbon cycle | 6/14/2009 |
Q: I've just been watching a dvd and it's got me confused. I thought I had the carbon cycle all ...
A: The DVD is wrong and your understanding is correct. The two cycles are independent, BUT.... ...
|
| Surface tension | 6/13/2009 |
Q: if you shower with water only would that be considered surface tension?
A: Surface tension is a scientific phenomenon that results when a molecule of a liquid (such as water) ...
|
| physics | 6/10/2009 |
Q: i want to make a working model on gravity/motion/sound ANSWER: I need more information in order to ...
A: Here is an idea for a gravity experiment. It's more difficult to do an experiment with motion or ...
|
| physics | 6/8/2009 |
Q: i want to make a working model on gravity/motion/sound
A: I need more information in order to make suggestions. How old are you? Projects for someone who is ...
|
| science question | 5/20/2009 |
Q: how does a computer know the exact pictures to put on the screen - Ben
A: Computers do exactly what the computer programmer tells them to do. If the programmer tells them to ...
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| science question | 5/20/2009 |
Q: What is one thing you study? -Alex, age 5
A: I'm not sure if I understand your question or not. If you are asking about me - what do I study, ...
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| science | 5/20/2009 |
Q: What happens to a battery that sits inside of soda?
A: Since soda conducts electricity, the energy that is stored in the battery will discharge, so the ...
|
| Invention of gum | 5/18/2009 |
Q: Which gum does the flavor last the longest?
A: You'd have to test various brands and various flavors. Do the experiment yourself and find out! ...
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| chromatography | 5/15/2009 |
Q: what must be used to make paint split up into various pigments ANSWER: You need a solvent for the ...
A: Use chromatography on all three samples of red paint - the dented car, neighbor A, neighbor B, and ...
|
| helium | 5/3/2009 |
Q: is helium in a cold or hot state?????????????
A: That's like asking is water in a cold or hot state? Just like water can be hot or cold, helium can ...
|
| Invention Convention at School | 5/2/2009 |
Q: I have an Invention Convention at school and my idea is due on Monday. Do you have an idea for it? I ...
A: You didn't say what grade you are in, and different ideas are appropriate for different age ...
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| Mold organic bread vs non organic bread | 4/29/2009 |
Q: I thought that mold would grow on my organic bread loaf rather than the non organic bread loaf. I ...
A: THe non-organic flour has been processed more - more chemicals, higher temperature. No wonder it ...
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| Mold organic bread vs non organic bread | 4/28/2009 |
Q: I thought that mold would grow on my organic bread loaf rather than the non organic bread loaf. I ...
A: You have a very limited sample size. Bake a bunch of different loaves of bread, and repeat the ...
|
| science | 4/26/2009 |
Q: How can we use chromotography for seperating drug dissolved in water.
A: 1. Dissolve the drug in water. 2. Dip in one end of a long absorbent piece of paper. 3. Capillary ...
|
| Eggs | 4/21/2009 |
Q: What is the effect of sprite (carbonated soft drink) on the egg itself and the shell?
A: Carbonated soda is acidic so it will etch the egg shell. It is possible that some of the carbon ...
|
| science | 4/20/2009 |
Q: Does soda stay colder in a can or plastic bottle? WHY?
A: Do the experiment yourself and find out! I guess a plastic bottle since plastic doesn't conduct ...
|
| kids science | 4/14/2009 |
Q: Im doing a science fair project on dropping an egg on compressed polyester and i cant find any ...
A: This is going to be almost impossible to find information online. Polyester can be compressed by ...
|
| how to make a boat | 3/31/2009 |
Q: please could you give an idea of how to make a boat for a project at school that my daughters doing. ...
A: Usually teachers give you a list of allowed materials. If you can use anything, find something ...
|
| science project | 3/18/2009 |
Q: I am a eighth grader here at northside middle school I was wondering if you can help with my project ...
A: There are lots of interesting experiments you can do to see how light affects the growth of plants. ...
|
| science fair project! | 3/7/2009 |
Q: i need help with my science fair project!!! i need a chart for the taste thresh hold in cluding ...
A: I assume that your experiment is to see how strong a flavor must be before you can notice it. You ...
|
| sugar solubility | 3/5/2009 |
Q: Why does sugar dissolve faster in water than in Diet Pepsi, Sierra Mist, or apple juice?
A: Sugar will dissolve faster into water than it will dissolve into water that already has other stuff ...
|
| baseball project | 3/2/2009 |
Q: why is it that baseball bats always break. i think i know becuase im am supper strong and take ...
A: baseball bats do NOT always break. I've never seen an aluminum baseball bat break. Wood bats often ...
|
| Plant Experiments | 2/26/2009 |
Q: I have a question for my science project.... Do plants grow better in more or less sunlight??? Also, ...
A: No plant can grow in zero sunlight. Most plants do best in normal sunlight. Most plants do poorly ...
|
| The Water Cycle | 2/21/2009 |
Q: My daughter is 6 years old and in kindergarten, She is doing the water cycle and we are stuck. I ...
A: The result and conclusion are that she learns how the water cycle works. Unless they want her to ...
|
| Solar | 2/12/2009 |
Q: My new briefcase came with a solar calculator. Of course, when the briefcase is closed the calc gets ...
A: Many solar calculators also have batteries - so they work even in the dark, until the battery gets ...
|
| gas pressure in can | 2/10/2009 |
Q: I read your experiment about the volume of gas in soda. I did it. I'm in third grade. I learned ...
A: The gas and the liquid are in equilibrium before you shake the bottle. "Equilibrium" means nothing ...
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| gas pressure in can | 2/10/2009 |
Q: I read your experiment about the volume of gas in soda. I did it. I'm in third grade. I learned ...
A: When you shake the sealed bottle, the pressure doesn't change. There is a very high pressure of gas ...
|
| Radiation | 2/8/2009 |
Q: Can you explain this in full? I am quite stuck!
A: There are many kinds of radiation. Which kind do you want to know about? Solar radiation means ...
|
| Project | 2/7/2009 |
Q: I am doing a project about variables,my question is that is a variable the same as a independent ...
A: A constant is something that doesn't change like the number "4". A variable is something that ...
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| Project! | 2/6/2009 |
Q: Can you please tell me what an energy chain is?? I need the answer as soon as possible.All the other ...
A: When people use the word "energy chain", they mean that energy doesn't get created or destroyed - it ...
|
| pond ecosystems | 2/5/2009 |
Q: In science class i am doing an EEI (Extended, Experimental, Investigation). I am in a group of four ...
A: There is no simple answer to your question. The insect life in a pond varies greatly depending on ...
|
| Water cycle on the moon | 1/31/2009 |
Q: How could a water cycle be started on the moon?
A: First you need to start with a lot of water! But a water cycle could not be established outdoors on ...
|
| runny liquids | 1/29/2009 |
Q: im doing a science project on which liquid is runnier when you put a marble in it:water or cooking ...
A: The scientific word for "runniness" is "viscosity". Liquids with higher viscosity are gooier and ...
|
| Echinoderms | 1/22/2009 |
Q: "Subject: Mollusks 1- Hibernate or migrate, and if so where? 2- what behaviors, characteristics are ...
A: You can look up this stuff on the simplified version of Wikipedia, or children's online science ...
|
| electricity with fuits | 1/21/2009 |
Q: i have a question a bout how does electricity and fruits have in common, i mean how can they make ...
A: Here are some links to a "potato clock" or "lemon clock." After you watch the YouTube video, read ...
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| mollusks | 1/21/2009 |
Q: "Subject: Mollusks 1- Hibernate or migrate, and if so where? 2- what behaviors, characteristics are ...
A: Mollusks, with the exception of octopi, do not have brains, do not think, and do not learn anything. ...
|
| building a ramp for science project | 1/17/2009 |
Q: My son is doing a project about which car goes the farthest and wants to build a ramp. Just ...
A: I suggest you use Hot Wheels-size cars and Hot Wheels-type plastic track. Have the plastic ramp ...
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| science | 1/15/2009 |
Q: what does a reference point have to do with the motion of an object?
A: Imagine you are riding in a train. The train is sitting still in the station. You dribble a ...
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| sugar content | 1/13/2009 |
Q: How do you measure the sugar content of junkfood, ie. doughnuts?
A: Usually kids don't measure the sugar, since it's complicated. Usually they just read the label on ...
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| finding what these science equations are used for. | 1/8/2009 |
Q: BaSO4 CaCl2 KCL AgBr NaCo3 KOH (the numbers are subscripts)
A: These are not science equations. They are the scientific names for chemicals. Barium sulfate, ...
|
| Model Arm | 1/6/2009 |
Q: I need to make a model of an arm, it doesn't have to be robotic, but should be able to move. I was ...
A: Rubber bands can easily be looped over the ends of screws. I suggest screwing screws into the ...
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| fuel | 12/17/2008 |
Q: what happens when we burn fuel i need a detailed answer for my essay please
A: Since you didn't say what grade you are in, I don't know how complicated of an answer you want. ...
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| egg drop | 12/11/2008 |
Q: how can i make it so i can drop an egg off a 2story building without breaking it?
A: Surround the egg with material that will absorb energy to protect the egg. Do some experiments to ...
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| Light and color | 12/6/2008 |
Q: I know different colors have different size wavelengths, I want to know if a color of light with a ...
A: Recently many fire departments started repainting the trucks lime green instead of red - and guess ...
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| Light and color | 12/6/2008 |
Q: I know different colors have different size wavelengths, I want to know if a color of light with a ...
A: Good question. Wavelength and brightness have nothing to do with each other. Light is like sound, ...
|
| Bridges | 11/29/2008 |
Q: I'm in the tenth grade and I have to build a bridge for science class. I decided to build a bridge ...
A: I assume you mean the span of the bridge (width from one end to the other) is 27 cm. The arch can ...
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| Bridges | 11/29/2008 |
Q: I'm in the tenth grade and I have to build a bridge for science class. I decided to build a bridge ...
A: I think you are describing an "arch bridge" and here are some links that will be useful. Keep in ...
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| chemistry | 11/28/2008 |
Q: Please can you inform me if beryllium is a metallic element or not
A: Beryllium is a metal. It's poisonous, very expensive, and is very strong even at high temperatures. ...
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| Daily Science | 11/21/2008 |
Q: if its winter in Green bay, Wisconsin,what season is it in Santiago, Chile? Why?
A: summer. Here's a good explanation, with great drawings. ...
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| Science | 11/20/2008 |
Q: im 13 yrs old in grade eight and i need to know facts about friction. only a few (10)
A: 1. Friction is caused by things rubbing against each other. 2. If you have enough rubbing due to ...
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| electricity and water | 11/20/2008 |
Q: I am doing a project on how electricity and water can eletrocut someone and I need to know why it ...
A: People's hearts beat because of electric signals that flow from one part of the heart to another. ...
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| Science heat transfer | 11/19/2008 |
Q: I'm really stuck on the following questions. Its about conduction, convection and radiation. You hav ...
A: Convection means hot air blowing transfers heat. The only one of your choices with blowing hot air ...
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| biology | 11/11/2008 |
Q: what are the links between the energy that carnivores get fromeating to the energy captured by ...
A: 1. The sun combined hydrogen atoms to form helium, which releases light. 2. The light goes through ...
|
| SCIENCE | 11/11/2008 |
Q: WHAT ARE THE STEPS TO DO HOW DOES WETTING A PAPER TOWEL AFFECT ITS STRENGTH?
A: 1. Get a roll of paper towels 2. Tear off some identical pieces along the perforations. 3. If you ...
|
| gravity | 11/5/2008 |
Q: why don't people in Australia feel like they are upside down
A: People feel that "down" is toward the dirt under their feet and "up" is toward the sky. In ...
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| the element thallium | 10/31/2008 |
Q: i have a science project due (friday oct. 31 (haloween) and i need to answer these questions and ...
A: Sally- Go to www.wikipedia.com and look up the article on thallium. It has LOTS of information. ...
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| Sugar crystale and Salt crystales | 10/20/2008 |
Q: Is there a big difference between salt crystals and sugar crystals?
A: Yes, there is a huge difference. Salt crystals taste salty and sugar crystals taste sweet. If you ...
|
| enamel erosion from sports drinks | 10/16/2008 |
Q: I was wondering if calcium carbonate taken along with Gatorade could counteract the enamel erosion ...
A: Nope. The erosion is due to the fluid in the mouth being acidic. To stop erosion, you'd need to ...
|
| magnetosphere | 10/15/2008 |
Q: what is the lengh and width of the magnetosphere
A: I assume you are asking about the Earth's magnetosphere. The earth is a sphere, which means it's ...
|
| phisics | 10/13/2008 |
Q: I am conducting a science fair project on the alcohol dehydration effect on a orange. Would rubbing ...
A: Either type of alcohol will allow you to do the experiment. Rubbing alcohol dehydrates things very ...
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| working models on the theme electricity | 10/13/2008 |
Q: the model can be about how to produce electricity or the various other concepts of electricity. ...
A: Here are some links http://www.sciencebuddies.org/mentoring/project_ideas/Elec_p009.shtml?from=Home ...
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| working models on the theme electricity | 10/13/2008 |
Q: the model can be about how to produce electricity or the various other concepts of electricity.
A: Here are some ideas: 1) Build an electric motor. You can buy kits or make your own without a kit. ...
|
| Aerodynamics | 10/12/2008 |
Q: I am an 8th Grade student and I am doing a science project this year. I chose an egg drop. I would ...
A: At these small distances, the egg doesn't build up a lot of speed. So the aerodynamic and drag ...
|
| whitch one? | 10/6/2008 |
Q: hey um? i need help. Does soda lost its carbonation faster in cold or hot temps?
A: good question. do the experiment to find out. I've never done the experiment, but am pretty sure I ...
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| Science Fair project | 10/3/2008 |
Q: how would you measure the alcohol after you put yeast in the food to find the sugar content?
A: You can buy a hydrometer which measures the density of the a liquid. Alcohol and water have ...
|
| science | 10/3/2008 |
Q: i need a diagram that explains the flow of energy from the sun to the air to the earth using the ...
A: Solar energy (mostly heat and light) radiates from the sun to the earth (show this as an arrow from ...
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| protons, electrons, & neutrons | 10/2/2008 |
Q: how many protons and neutrons are in indium and antimony
A: You can find this information on the periodic table. The number of protons is the Atomic Number, ...
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| alcohol content | 9/27/2008 |
Q: You indicated that sugar content can be measured by using yeast which yields alcohol. My question ...
A: Distilling the liquid will tell you how much alcohol is in it. Or you can buy a commercial ...
|
| Tesla Coil | 9/27/2008 |
Q: I'm 14 and I've been really interested in building a Tesla Coil for my schools year long science ...
A: I assume you've already read the Wikipedia article, which has a lot of helpful information. ...
|
| 6th grade science fair project | 9/18/2008 |
Q: I am going to do my Science Fair project on the best types of insulation. I have seen sample ...
A: Water has a very high heat capacity and high thermal conductivity, so it's a great material to use ...
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| science | 9/18/2008 |
Q: Heat always flows fron the objet whit.......to the objet with
A: Heat flows from the hot object to the cold object. This makes the hot object cool down, while the ...
|
| I need help on my biology homework | 9/11/2008 |
Q: Ok well i have 4 questions, 1. If data from repeated expirements dont support the hypothesis what ...
A: 1. Hypothesis- People out there are willing to do my homework for me. Experiment- Post my ...
|
| You think other minds exist? | 9/9/2008 |
Q: Do you think other minds does exist? if yes, what make you think that you are talking to "real ...
A: Google the phrase "Turing test" which is a test to use to tell if you are talking to a person or a ...
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| science | 9/6/2008 |
Q: what is meant by separating techniques?
A: Just like is sounds. There are many different ways to separate stuff. If two kids are fighting at ...
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| Can I say it is highly possible for human to perceive the same taste? | 8/27/2008 |
Q: sorry for asking the same question again I know it is impossible to know or tested whether do we ...
A: Different people perceive different tastes when eating the same food. If I eat a cookie, I may ...
|
| Biology | 8/23/2008 |
Q: What is the difference between a control group, independent variable, and dependent variable? Can ...
A: When you do an experiment, you test the effect of something. So you divide the test subjects into ...
|
| Do we really "SEE" the real world with our EYE? | 8/23/2008 |
Q: i have the same question to ask you... 1.When we look at a apple? do we really "SEE" the apple with ...
A: 1.When we look at a apple? do we really "SEE" the apple with our eye? ...
|
| growing bioluminescent bacteria | 8/13/2008 |
Q: we have a nice recipe from http://cibt.bio.cornell.edu/programs/archive/0608alum/lumos.pdf Pretty ...
A: Peptone is "Any of various water-soluble protein derivatives obtained by partial hydrolysis of a ...
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| growing bioluminescent bacteria | 8/12/2008 |
Q: we have a nice recipe from http://cibt.bio.cornell.edu/programs/archive/0608alum/lumos.pdf Pretty ...
A: As the Cornell website you linked to mentions, you can buy the stuff online from biological supply ...
|
| step up voltage | 7/25/2008 |
Q: I am doing an experiment to make some ac current by using a motor i succeeded ,but i have a doubt my ...
A: Yes, you can step up the power to 230v. 10 Watts at 230 volts means you will have around 30 ...
|
| pounds of pressure on lower back | 7/15/2008 |
Q: If I lift ten pounds off the floor and my uppor torso weights 105 pounds, how many pounds of ...
A: People don't put "pounds" of pressure on their back. They put "pounds per square inch" on their ...
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| Do our senses really perceive the real world? | 7/10/2008 |
Q: I have read article from some website...and I have some issue concerning the existence of science ...
A: Engineers and scientists see the world very differently from philosophers. Philosophers ask ...
|
| Wat kind of wood | 7/9/2008 |
Q: Hi i need to know wat kind of wood floats to build an RC warship can u help me?
A: Almost every kind of wood floats. To build a radio-controlled ship, usually people use spruce, pine ...
|
| Solar Heat | 7/7/2008 |
Q: What is the highest temperature that can be reached inside an automobile setting in the sun?
A: According to a US patent, the temperature can go up as high as 200 degrees, but this is very rare. ...
|
| Do human visual and colour receptor work differently? do human have the same visual experience? | 7/3/2008 |
Q: I got another question on human vision -Does Human have the same colour vision receptor? Do they ...
A: You can do controlled experiments showing people pictures of things. People with normal brains and ...
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| Does every human taste receptor work differently? Do we enjoy the same kind of taste sensation? | 7/1/2008 |
Q: I understand no human taste receptor work exactly the same,does all the normal human taste receptor ...
A: No, we don't share the exact same experience. People who smoke or chew tobacco can't detect subtle ...
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| Does every human taste receptor work differently? Do we enjoy the same kind of taste sensation? | 6/30/2008 |
Q: I understand no human taste receptor work exactly the same,does all the normal human taste receptor ...
A: Some people have chemical disorders which cause them to experience different tastes than normal ...
|
| Soft Drinks | 6/10/2008 |
Q: I am from Australia and I am doing an experiment in class for soft drinks. Is there any way you ...
A: A quick-and-dirty way to measure carbonation is to measure the pH of the soda. CO2 + H2O = carbonic ...
|
| ........ | 6/6/2008 |
Q: how can you drop a egg without cracking?with:straws,toothpick,pipe cleaner,popsicle sticks,tape
A: Wrap the egg in a little bit of tape, but not too thick. Then make a tight cage around the egg ...
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| Assignment on heat and stuff. | 6/5/2008 |
Q: For our semster 1 year 7 science assignment we have to insulate a can using everyday objects. we can ...
A: The best, cheap, easily available insulation is styrofoam, but it's hard to make it the right shape ...
|
| science | 6/4/2008 |
Q: what is matter and how do you measure it?
A: Matter is the scientific word for "stuff". Everything you touch is matter. Dirt, water, wood, ...
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| h2o? | 6/1/2008 |
Q: what does h2o stand for? i know its water but what is the break down thanks!
A: H2O means there are two atoms of Hydrogen (H) and one atom of Oxygen (O). Here's a picture of a ...
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| egg drop project | 5/27/2008 |
Q: I am doing a science project with my little brother, He is in the 3rd grade. he making contraptions ...
A: It has nothing to do with physics and everything to do with common sense. Common sense says if the ...
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| Egg Drop Competition | 5/21/2008 |
Q: I have a project called the 'Egg Drop/launch competition'. I have only a limited supply - I will ...
A: Use your brain and experiment. Try stuff. If it doesn't work, try something else. That's called ...
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| Scince Fair Project | 5/20/2008 |
Q: I am a student that attends Howick Intermediate School. I was wondering, about my science fair ...
A: Good question. I don't know the answer. Do the experiment and find out for yourself. Let me know ...
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| Density | 5/19/2008 |
Q: How can the an egg effect the density of salt water?
A: Eggs have a shell. The shell has little holes in it, called pores. Water and air can move through ...
|
| Science project | 5/16/2008 |
Q: wanted to know if I'm doing a science project on making my own lip gloss what can be my hypothesis?
A: Many possible hypotheses 1) Homemade lip gloss costs less than store-bought 2) Homemade lip gloss ...
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| science | 5/6/2008 |
Q: if you were building a house,list materials that are made of minerals that you would use and explain ...
A: A traditional Western-style house obviously uses very different materials than a teepee, Mongolian ...
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| MST- math, science and technology | 4/30/2008 |
Q: My 8 year old is interested in making crystals for this years MST fair. i know absolutely nothing ...
A: I would suggest going to the library and looking in the children's section for books about science. ...
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| Science project | 4/24/2008 |
Q: Ideas for a display board on Determining why bubbles escape in soda. I need variables, graphs & ...
A: Your question should be how fast the bubbles escape in soda, not why. Variables - type of soda, ...
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| heating coil...small heater.. | 4/22/2008 |
Q: I am preparing portable heat steamer, model has only 10 ml of reservoir of water, which should ...
A: I don't have enough information here to make a good recommendation. I don't know what is the ...
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| solar energy | 4/21/2008 |
Q: How is useable energy obtained from solar energy? Please be very detailed.
A: This sounds like a homework question. I suggest you read the wikipedia articles on solar energy at ...
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| science chemestry | 4/19/2008 |
Q: which dissolves better- baking soda or salt?
A: THere is no answer to the question you have asked because there is no scientific meaning of the word ...
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| Nail Polish ingredients (N.Y.C.) | 4/16/2008 |
Q: For my 5th grade science project I need to know what the ingredients are for N.Y.C. brand nail ...
A: Different colors will have different ingredients. Otherwise, if the ingredients were exactly the ...
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| i need help soon!!! | 4/9/2008 |
Q: ok i am a freshman and i am doing a project on agriculture. i had the idea of testing which liquid ...
A: Almost nothing will completely dissolve pieces of meat. Some liquids will cause them to soften and ...
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| Science project (help) | 4/5/2008 |
Q: .Im helping my daughter with her science project and her topic is "Does the type of liquid affect ...
A: You won't find anything online or in a book. Do the experiment yourself and see what happens! Get ...
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| Yeast fermentation | 4/3/2008 |
Q: During a yeast fermentation experiment my class was studying the fermentation of two yeast, ...
A: Cerevisiae ferments many, but not all sugars. Here's the abstract of a journal paper explaining ...
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| Science | 3/24/2008 |
Q: What will air, water, and oil form? And what will occur when garbage, or recyled material is added?
A: Air + water = water with air bubbles in it. Air + oil = oil with air bubbles in it. Oil and water ...
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| 1st grade science project | 3/20/2008 |
Q: My son has to do a science fair project on human body. he wanted to do - what does the brain do? ...
A: Here's a fun experiment. Most people don't realize that smell and taste are very closely linked. ...
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| egg dropping | 3/18/2008 |
Q: Please recommend an experiment for a 2nd grader to do. It requires dropping an egg from a 5ft ...
A: It sounds like you are asking for a simple science experiment for a second grader, but it doesn't ...
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| egg dropping | 3/18/2008 |
Q: Please recommend an experiment for a 2nd grader to do. It requires dropping an egg from a 5ft ...
A: The usual egg drop "experiment" is to use common items found around the house to build something to ...
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| Chemistry | 3/17/2008 |
Q: I am making a molecule with styrofoam balls or other items. I need to know the formula to make ...
A: I think you mean "vaseline", which is a trademarked name for petrolatum, also called petroleum ...
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| plants | 3/14/2008 |
Q: We are doing a science fair experiment on the different plant characteristics. We are interested ...
A: 1) How many different leaf characteristics are there? That depends on what leaves you collected. ...
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| Science Fair Ideas | 3/12/2008 |
Q: What experiment would be right for me? 6th grade Earthscience electricity
A: There are lots of fun and interesting electricity experiments you can do. Here are the two most ...
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| Ionic, covalent, and molecular bonds | 3/8/2008 |
Q: What experiment can I make to differentiate between ionic, covalent and molecular bonds according ...
A: There is no meaningful experiment that you can do at a high school level on this subject. I suggest ...
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| plants | 3/4/2008 |
Q: what is the process in which plants use oxygen and food to get the energy they need?
A: This is a poorly-worded question. Plants get their energy from the sun, they get their oxygen (in ...
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| Biosphere | 3/3/2008 |
Q: I am in 5th grade and I have to describe the bioshere around my home with two major cycles that ...
A: "Biosphere" has two different meanings. One meaning is all the living stuff in a certain area, like ...
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| testing sugar content in food | 3/3/2008 |
Q: How would you set up a test with 5 different foods to find out which food had the most sugar?
A: You could dump an equal amount of yeast (which eats sugar) into the different foods, and let it sit ...
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| optics | 3/2/2008 |
Q: who do i draw a light ray diagram to show the formation of a shadow when a point light sorce ...
A: Draw one ray that is blocked by the object. Draw another ray that does not intercept the object. ...
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| science | 3/1/2008 |
Q: is there any simpler way of explaining independent variables? i am a kinesthetic learner and i can't ...
A: When you do an experiment, you try changing something to see what happens. For instance, if you ...
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| crystals | 2/27/2008 |
Q: I am in the 3rd grade. My science project is about crystals. My question was Would crystals form ...
A: Salt crystals taste salty. Sugar crystals taste sweet. It's easier to grow sugar crystals. They ...
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| crystals | 2/26/2008 |
Q: I am in the 3rd grade. My science project is about crystals. My question was Would crystals form ...
A: Most chemical reactions happen faster when it's warmer. Forming crystals also happens faster when ...
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| Soda shaking experiment | 2/26/2008 |
Q: Does the number of times you shake a diet soda bottle affect how much the volume of soda is ...
A: If you open the lid very, very carefully, you won't lose any liquid at all - only gas. If you just ...
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| Soda shaking experiment | 2/26/2008 |
Q: Does the number of times you shake a diet soda bottle affect how much the volume of soda is ...
A: There are two kinds of "volume" here - volume of gas and volume of liquid. The volume of the liquid ...
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| rock weathering | 2/26/2008 |
Q: My son is wondering about the five steps to rock weathering. He has 1)H2O gets in a crack in a rock ...
A: Your son and the teacher are both right. Your steps 1 through 3 are correct. Here's a little more ...
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| homemade candles? | 2/24/2008 |
Q: i was watchin tv and caught the end of a show where some lady was making scented candles... i wanted ...
A: Go to your local craft supply store. They will have an entire aisle with candle-making supplies. ...
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| The Bear Naked Egg Drop | 2/23/2008 |
Q: The instructor for our Earth Science class organized a project called the Bear Naked Egg Drop, worth ...
A: build something - test it - redesign - rebuilt - retest. That's the key to a great design. use ...
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| open ended question | 2/21/2008 |
Q: 1.what is a open ended question 2.what happens to the respiratury and circulation system when a ...
A: 1. An "open-ended question" is one that asks for a long answer. Such as "What did you think of the ...
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| Science Fair project- Water Cycle | 2/20/2008 |
Q: My students (3rd grade) need a primary source for their research on the water cycle. Here are their ...
A: 1. The water cycle would stop if we ran out of water or sunshine. There is no water on the moon, ...
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| Water Cycle | 2/20/2008 |
Q: Im a student working on a project and I have a phew questions. What do you know about the Water ...
A: I think you have a "few" questions, not a "phew" questions. What grade are you in, so I know how ...
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| surface tension | 2/18/2008 |
Q: I need help with my son's 5th grade science project .It relates to surface tension. His subject ...
A: Water is made up of jillions of tiny little water molecules, just like a snowball is made up of lots ...
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| I need help for my kids' Science Projects for 3rd and 4th Grades? | 2/17/2008 |
Q: My daughter chose "Will saltwater evaporate faster than water w/out salt?" and my son chose "How ...
A: You don't need any websites to do these fun and easy experiments. For the salt water project 1) ...
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| sunlight energy | 2/17/2008 |
Q: 1. What supplies the most energy used on earth? is it sunlight? 2. What substance reacts when ...
A: When you burn wood, you start with chemical energy. When the wood burns, it releases heat (thermal ...
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| sunlight energy | 2/16/2008 |
Q: 1. What supplies the most energy used on earth? is it sunlight? 2. What substance reacts when ...
A: 1. Almost all the energy on earth comes directly from sunlight or indirectly from sunlight. When ...
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| Water | 2/12/2008 |
Q: What is the difference freezing and boiling point for tap water and pure water ?
A: Tap water has more impurities. These impurities act as nucleation sites, so tap water will boil and ...
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| science | 2/10/2008 |
Q: How do you make candy crystals and will it work as a science project?
A: What grade are you in? It's a great science project for students in 3rd grade or younger. If ...
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| Plants | 2/9/2008 |
Q: Why would tonic water kill a tomato plant when used as its primary water source?
A: I never tried this experiement, so I will have to guess. There are two possible explanations. 1. ...
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| Biology | 2/6/2008 |
Q: ) Why are bananas good for my heart? My grandad has bad kidneys and needs to eat bananas. ...
A: People's blood, like the blood of all animals, is basically salt water with other stuff (like red ...
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| Biology | 2/5/2008 |
Q: ) Why are bananas good for my heart? My grandad has bad kidneys and needs to eat bananas. ...
A: Good question. The answer is a bit complicated. When people have a bad heart or bad kidneys, the ...
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| solids and liquids | 2/3/2008 |
Q: I am a teacher in vanuatu with ltd resources and was wanting information for kids to make posters on ...
A: Lava is melted metals. Depending on what metals are in the lava, it can melt at different ...
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| Co2 levels in club soda | 2/2/2008 |
Q: How much carbon dioxide is in a 355 ml can of club soda?
A: Read these three articles http://en.wikipedia.org/wiki/Supersaturation ...
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| Science Fair Project | 2/1/2008 |
Q: I am an 8th grader. I have to do my science fair project on something that involves consumer ...
A: You don't need to measure how much copper dissolves off a penny - just look at the color of it. Get ...
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| Bubbles | 1/29/2008 |
Q: Do antibacterial soaps have a chemical in them that makes more bubbles than regular soap?
A: That's a very good question and I don't know the answer. But it's very easy to do the experiment ...
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| science fair project research=organic and inorganic stains | 1/29/2008 |
Q: well i was curious to know what exactly is an organic stain? what exactly is an inorganic stain? i ...
A: Organic means it involves complicated molecules containing carbon, like you usually find in living ...
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| carbonation cans vs bottles | 1/28/2008 |
Q: I am doing a science fair project on carbonation. My experiment is to show which is higher in ...
A: Get some balloons. Put the cans and bottles either both in the fridge or both on the counter so ...
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| poisonus plants | 1/25/2008 |
Q: me and my friend have a science fair well were doing poisonus plants and we are ...
A: What questions do you have? What kind of poisonous plants? Poisonous if you eat even a little ...
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| biology/ orbital rules | 1/22/2008 |
Q: i don't know how to find the atomic mass and the atomic number
A: You look them up on a table, like the periodic table. Here is a link to one. ...
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| THAWING ICE | 1/22/2008 |
Q: If I put water that is 40 degrees and water that is 180 degrees in a -10 degree walk-in freezer and ...
A: OK. Now I understand the question. This is a complicated question with no simple answer. It has ...
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| THAWING ICE | 1/22/2008 |
Q: If I put water that is 40 degrees and water that is 180 degrees in a -10 degree walk-in freezer and ...
A: I assume you are asking about freezing water, not thawing. ice. The colder water will freeze ...
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| testing carbonation in soda | 1/15/2008 |
Q: How can I test and record for the amounts of carbonation in different types of soda Thanks Joe ...
A: Get a bunch of two-liter soda bottles. Make sure they are all at the same temperature. Get a bunch ...
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| Science Fair Project | 1/15/2008 |
Q: I am an 8th grader. I have to do my science fair project on something that involves consumer ...
A: Here are some ideas 1. Which will dissolve the copper off a penny quicker, Coke or Pepsi? Since ...
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| electrolysis of water | 1/13/2008 |
Q: what is the most important stuff about electrolysis of water. i'm doing my science fair on hydrogen ...
A: Read the wikipedia article. Do you have any specific questions about electrolysis? It means you ...
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| mirrors | 1/13/2008 |
Q: i'm kayla and my friend hanna and i are doing a project on mirrors and i was wondering if you could ...
A: You can research mirrors online. Start with Wikipedia. If you have specific questions about ...
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| science | 1/12/2008 |
Q: what evaporates faster sugar water or salt water? ANSWER: I don't know, since I never did that ...
A: Here are some links, with contradictory answers. http://www.blurtit.com/q822352.html ...
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| egg drop science fair project | 1/9/2008 |
Q: My son is in 4th grade. He is doing an egg drop experiment for his science fair project. The ...
A: This is a classic example of why English majors should not be allowed to teach science. Obviously ...
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| density | 1/9/2008 |
Q: how does the material of a rocket made of tin foil, construction paper, notebook paper effect how ...
A: Things fly because the propulsion force (upward) is greater than the force of drag (downwards) and ...
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| Formul;as | 1/1/2008 |
Q: I need the following formulas for a (square, a ring,cylinder,hollow cylinder,a triangle,disc, rod) ...
A: You can look these up easily in reference books at your local library or in online references. I ...
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| Do gorillas eat coconuts? | 12/22/2007 |
Q: (Our karate teacher wants to know.) Thank you!
A: Gorillas live in Africa. Coconuts aren't native to Africa, so in the wild gorillas never are near ...
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| ? | 12/16/2007 |
Q: Do taste buds change over time while you get older/ if so what age? alie
A: Good question. As people get older, their sense of taste changes. It is impossible to tell if this ...
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| electricity | 12/11/2007 |
Q: why is an atom important in static and current electricity? what important job do electrons have?
A: Static electricity is caused when one or more electrons get separated from the rest of the atom, ...
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| physics | 12/6/2007 |
Q: a transverse wave has an amplitude of 1.80m. what is the distance between the top of a crest and the ...
A: Draw a picture of the wave. The wavelength is 11 m, which means the distance from one crest (top) ...
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| Earth Science | 12/2/2007 |
Q: if density = 4.5g/m3 and the size of a block of granite is 4.0m by 3.1m by .5m what is the mass in ...
A: multiply the three dimensions together to get the volume. since d=m/v, then you can solve the ...
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| conductivity | 12/1/2007 |
Q: i would like to ask your help. my project is about the conductivity of gray water compared with ...
A: I don't understand your question. Gray water will have more dissolved ions, so you expect it should ...
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| earth space science | 11/30/2007 |
Q: how do we test what type of grass reduces erosion the best?
A: This experiment would take a long time to do because you'd have to wait for the grass to grow. ...
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| science fair | 11/29/2007 |
Q: how to test which soft drink has the most carbonation?
A: 1. Get all the bottles at the same temperature by leaving them all out on the kitchen counter, or ...
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| Sea Floor Spreading | 11/29/2007 |
Q: What feature of the ocean floor does the center slit stand for?
A: There is a big crack in the center of the Atlantic Ocean, where the sea floor is spreading and new ...
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| density | 11/28/2007 |
Q: Can you explain more thoroughly the subject of density
A: Density is weight (or mass) divided by volume. Popcorn has a low density, because a big bag of ...
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| carbonation in soda | 11/21/2007 |
Q: I need to find out how to measure loss of carbonation in a 2 liter bottle of soda at different ...
A: Unless you have a super-precise scale, you won't be able to measure the weight of the lost carbon ...
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| Density | 11/18/2007 |
Q: IS it true that to find the density of something you have to divide mass and volume???
A: You don't HAVE to do that, but it's usually the easiest way. Density = mass divided by volume. But ...
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| Variables | 11/18/2007 |
Q: My homework is to find out what a dependent and independent variable is. Unluckily, I have checked ...
A: When you do an experiement, you vary one condition and then measure the result. The condition you ...
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| help with science fair project | 11/16/2007 |
Q: my science fairproject is: how does the evaporation rate of an alcohol depend on the number ofcarbon ...
A: When you buy the alcohol, they will give you its chemical formula. You then count the number of ...
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| help with science fair project | 11/16/2007 |
Q: my science fairproject is: how does the evaporation rate of an alcohol depend on the number ofcarbon ...
A: Step one is to buy some alcohol of different molecular weights - methanol, ethanol, isopropyl ...
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| Five minute alarm clock project with energy transformations | 11/15/2007 |
Q: My daughter needs to create a science project similar to the "mousetrap game". It needs to show ...
A: See if your local library (or video rental store) has a copy of the film "The Way Things Go", which ...
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| help with science fair project | 11/12/2007 |
Q: my science fairproject is: how does the evaporation rate of an alcohol depend on the number ofcarbon ...
A: It's going to be tough to find the raw materials for this experiment. It's hard to find different ...
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| Generating electricity | 11/12/2007 |
Q: How much electricity could one human sized hamster wheel generate if someone ran the distance of a ...
A: Good question. Power is measured in watts, and energy is measured in watt-hours or watt-minutes. A ...
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| science fair project | 11/11/2007 |
Q: For my science fair I'm doing Does soda lose its carbonation faster at cold or hot temperatures? ...
A: If you leave the cap off, it will never lose carbonation. Soda bottles that are 20 years old that ...
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| sience | 11/6/2007 |
Q: i need help with a science fair project and i want to do some thing about smoking
A: Here is my favorite science fair project involving smoking: Get a breath-meter (called a ...
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| plants | 11/6/2007 |
Q: i am doing a science experiment to see if water or gatorade helps plants grow taller. i have seen ...
A: Yes. Plants do better with Gatorade instead of water, just like people do better with Gatorade ...
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| Egg drop experiment | 10/30/2007 |
Q: I am trying to help a group of students prepare for an egg drop experiment. They must drop an egg in ...
A: You want something that will absorb energy. Foam has little air pockets which crush, absorbing ...
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| lip gloss | 10/28/2007 |
Q: what are some independant varibles ,dependant varibles,consant, and controls for lip gloss?
A: First you have to ask what you are testing for? Price, amount of shine, taste, spreadability, ...
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| Chinchilla Project | 10/25/2007 |
Q: I need a project that has never been done before using my pet chinchilla. Can you help me? It has to ...
A: There are billions of people in the world and millions of them have owned chinchillas. Just about ...
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| THE OCEAN | 10/23/2007 |
Q: how much rain falls on the ocean?
A: Good question. Some parts of the ocean (such as off the coast of Vietnam) get a lot of rain. Other ...
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| science | 10/17/2007 |
Q: what is evaporation and how does it work
A: Evaporation is when the water turns into gas and goes up into the air. For example, if you leave a ...
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| carbonation in soda | 10/17/2007 |
Q: does soda lose its carbonation faster at cold or hot temperatures?
A: Do the experiment yourself and find out. Get two identical bottles of soda. Put one in the ...
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| magnets | 10/17/2007 |
Q: Why do scientist use steel and iron to make magnets? I am 8 years old
A: To make a magnet, you need a material that will respond to a magnetic field. Wood, for instance, ...
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| Science Project | 10/16/2007 |
Q: For my school's science fair, we each had to come up with a project. Mine is to see which soda ...
A: It sounds like your hypothesis will be, "Some brands of sodas will keep their fizz longer than other ...
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| science | 10/10/2007 |
Q: how can we tell which soda has the most carbonation in it is there a experiment we can do
A: This is a fun and easy experiment. You will need a bunch of soda bottles, all the same size (2 ...
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| Light and plant growth | 10/9/2007 |
Q: How does the color of light affect plant growth?
A: Good question! You can do an experiment to find out. Get a 6-pack of identical plants at your ...
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| I NEED HELP WITH SCIENCE PROJECT | 10/2/2007 |
Q: Sean
A: You say "I have not gotten any good results." I bet you HAVE gotten good results if you are using ...
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| Insects hunting | 9/30/2007 |
Q: How do insects such as flies compete for food?
A: Flies lay their eggs and eat food like rotting garbage. Imagine a very small rotting piece of meat ...
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| Nature | 9/28/2007 |
Q: HELP!!!! I am a student in Lake Charles, Louisiana. My class found a lot of oak leaves with these ...
A: There are many types of caterpillars that eat oak leaves. They turn into moths when they get older. ...
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| Earth's magnetic field | 9/26/2007 |
Q: 5th-grader asks: Where does the earth's magnetic field come from? Iron ore rocks and spinning molten ...
A: Nobody knows for sure since nobody has ever been deep inside the earth to see what's there. But ...
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| science | 9/26/2007 |
Q: If electrons are supposed to repel other electrons, why don't all of our cells or any other ...
A: Good question! The electrons on the outside of one atom are repelled by the electrons on the ...
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| temperature of soda | 9/23/2007 |
Q: my son in the 6th grade has a science project to do. How does the temperature of the soda affect ...
A: Good question. You can do this experiment yourself at home. Get three identical soda bottles. ...
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| Carbonation | 9/19/2007 |
Q: I'm need help with my 7th grade science project. my question is "What soda and baking soda make the ...
A: Carbonation means bubbles of carbon dioxide. That's the stuff that makes bubbles in ordinary soft ...
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| microscopes | 9/17/2007 |
Q: Why is using a microscope an important skill for life scientist?
A: Take a look at some of these photos taken through a microscope for scientific purposes. ...
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| HELP! | 9/16/2007 |
Q: I am finishing up a lab for physics I honors... I need help with two questions please. 1. Does the ...
A: 1) The frequency and wavelength of any wave phenomenon are inversely related. As the frequency ...
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| sentence | 9/12/2007 |
Q: can you give me a senetence with independent variables
A: I'm not sure I understand your question. Independent variables are things that can change, but one ...
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| Chinchilla experiment | 9/12/2007 |
Q: I need a simple experiment that involves my pet chinchilla. I have to video-tape the experiment so ...
A: You didn't say what grade you are in, so I'll suggest a few things that will work for elementary ...
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| Soda and carbonation | 9/7/2007 |
Q: which soda has the most carbonation?
A: No idea which soda holds the most - sorry. You could do an experiment yourself to find out. Get ...
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| plants | 9/7/2007 |
Q: what gas do plants need to make food
A: People take the food they eat and "burn" it with oxygen to get energy. So we breathe in oxygen and ...
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| i wanna know one answer | 8/22/2007 |
Q: sir, i want to know why there are disc brakes in today's cars or motoecycle not having the ...
A: Motorcycles (and cars) need to get good traction on the pavement, so they don't slip. "Traction" ...
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| carbination | 8/21/2007 |
Q: why do we carbonate water
A: People carbonate water to make soda (like Coca-Cola and 7-up) because they enjoy the fizzy feel of ...
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| i wanna know one answer | 8/19/2007 |
Q: sir, i want to know why there are disc brakes in today's cars or motoecycle not having the ...
A: There are many types of these bombs - hydrogen (fusion) bombs, uranium (fission) bombs, and ...
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| i wanna know one answer | 8/19/2007 |
Q: sir, i want to know why there are disc brakes in today's cars or motoecycle not having the ...
A: More than 10,000 years ago, the Earth was in an Ice Age. That means it was much colder than it is ...
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| i wanna know one answer | 8/18/2007 |
Q: sir, i want to know why there are disc brakes in today's cars or motoecycle not having the ...
A: You asked another very good question! That depends on who you ask. Viruses can reproduce ...
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| i wanna know one answer | 8/18/2007 |
Q: sir, i want to know why there are disc brakes in today's cars or motoecycle not having the ...
A: Good question. Motorcycles have always had disk brakes since they are much smaller than ...
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