| Subject | Date Asked |
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| science | 11/18/2009 |
Q: Why does more gas escape from a bottle of soda when you open it at room temperature than if you get ...
A: When the soda is warm, the more CO2 is able to dissolve in the soda; when lower, less CO2 dissolves ...
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| growing bacteria | 11/6/2009 |
Q: we are trying to devise a 3rd grade science fair project using petri plates with agar to test ...
A: The easiest thing to do would be to swab surfaces that you touch a lot - like a door knobs or sink, ...
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| Plants | 11/3/2009 |
Q: We are doing a project water -vs- orange juice. We are trying to figure out if a plant can survive ...
A: You are testing whether or not using orange juice instead of water will affect plant growth. This ...
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| chromatography | 11/2/2009 |
Q: what type of information can scientists get by using chromatography?
A: There are many types of chromatography. The first step in chromatography is separating out ...
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| control group | 10/25/2009 |
Q: What is a control group?
A: When you are trying to find out how one thing affects something else, your experiment includes a ...
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| egg drop | 10/21/2009 |
Q: I am doing an egg drop project. It needs to survive a drop off the 3rd story of a parking garage.. ...
A: Have you tried adding some kind of parachute for air resistance? You can try padding the bottom of ...
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| air and flight | 10/15/2009 |
Q: i am supposed to be doing a grade 7 project for science.i am to build a flying object using ...
A: You need to find something with a motor of its own that can attach to blades. You may have to ...
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| steam | 10/11/2009 |
Q: If I put cold water in capsules on a wheel and had them pass through heated water in a tray or dish ...
A: I would need a diagram to give you a full scientific explanation. However, what you're talking ...
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| Photosynthesis and Resporation | 10/9/2009 |
Q: I am in 6th grade and we recently are doing a unit on "Photosynthesis and Respiration". We did a ...
A: Your teacher is looking for you to understand that in plants, photosynthesis happens during the day ...
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| science | 10/7/2009 |
Q: If you were making a cake in an oven which one would it be conduction, convection or radiation and ...
A: Most ovens are conduction ovens. Conduction is when heat is transferred directly from one molecule ...
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| water | 10/7/2009 |
Q: do icebergs float?
A: That's a great question. Icebergs are quite large and do float, but only around 1/7th or 1/8th (up ...
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| science | 10/4/2009 |
Q: To what kingdom do protozoans belong?
A: That's a great question. The kingdom system of classification is constantly changing - at times, ...
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| Circular motion | 9/20/2009 |
Q: Do you know any websites where I can find Computer simulations in analysis of circular orbits(motion ...
A: When you talk about the circular force, you are actually talking about a combination of factors ...
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| bacteria | 9/14/2009 |
Q: How might some types of bacteria be helpful to the environmet?
A: There are many types of bacteria that are helpful to the environment. "Nitrogen fixing bacteria" ...
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| Homework Question | 9/13/2009 |
Q: I am a 6th grade student. I am supposed to write a pargraph about solar radiation for my Science ...
A: Solar radiation is essentially light waves - including some light waves like ultra violet and ...
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| science | 8/26/2009 |
Q: Sir, Why is carbondioxide higher in jungles at night? I am in IV class. kris
A: When you think about a jungle, you typically think about a great deal of trees. During the day, ...
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| Do we have the same tastebud? | 8/25/2009 |
Q: I have a question to ask, when I saw my dog eating my biscuit, I was wondering, do dog have the same ...
A: You ask a lot of great questions. In truth, scientists don't know that people all see / taste / ...
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| Physics | 8/25/2009 |
Q: How do you solve this problem? Calculate the force of gravity on a 1-kg mass at Earth's surface. The ...
A: For an object on the surface of the earth, the distance = the earth's radius The mass 1 = 1kg Mass 2 ...
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| worldwide afforestation | 8/6/2009 |
Q: I have problems with this question "Why should a worldwide afforestation programme be considered?" ...
A: Afforestation (also known as reforestation) is the process of planting seeds and trees in areas that ...
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| Energy Conservation | 8/6/2009 |
Q: define energy conservation
A: You may be talking about one of two things, so I will explain both. 1) Energy conservation in terms ...
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| Carnival Games Science Project | 1/6/2009 |
Q: I am going to do a science project on whether carnival games are skill or trickery. I thought I ...
A: You are proposing a good question. Carnival games use science to create a situation in which it is ...
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| Science Project (EggDrop) | 12/10/2008 |
Q: My class is doing a egg drop project where a egg is being dropped from twenty-five feet. The only ...
A: You want to think about things that can slow the egg down as it travels, or can absorb some of the ...
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| Fizz | 11/25/2008 |
Q: My daughter is doing a science project on "how does temperature affect the amount of fizz". We have ...
A: You may want to clarify your question a bit. A more precise question might be: "How does starting ...
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| Science fair | 11/18/2008 |
Q: I am a 7th grader and i and my friend have decided to enter for the science fair at my school. our ...
A: I am thinking you are looking to figure out how plants can remove oil from polluted water, rather ...
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| aerodynamics | 11/15/2008 |
Q: i am a student studying in singapore, and i would like to ask if a heated glider would fly higher ...
A: It depends on how the heat is applied. If it is applied to the glider overall, no. However, if you ...
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| important | 11/14/2008 |
Q: does color have an effect on a person food choice.How
A: There are many animals that naturally avoid foods of a certain color. Many scientists believe that ...
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| 5th Grade Science Fair...Help please! | 11/13/2008 |
Q: I am helping my little brother with his science fair project and we are measuring the carbonation in ...
A: How big are your mixing bowl and your measuring cup? You may want to fill the measuring cup until ...
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| science fair research paper / currently accepted theories | 11/13/2008 |
Q: My son is working on how different liquids affect the growth rate of bean seeds. He can't find any ...
A: When you talk about the rate of growth of bean seeds, a number of factors come into play. First ...
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| Science | 11/8/2008 |
Q: How does wetting a paper towel affect its strength?
A: A paper towel is made up of many tiny fibers. When the paper towel is wet, the fibers are grabbing ...
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| Science | 11/7/2008 |
Q: How does dishwashing liquid clean away oil?
A: That's a great question. Dishwashing liquid is made up of two-sided molecules. One side of the ...
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| wind turbines | 11/2/2008 |
Q: I chose wind turbines as my science project. Now, I just need an inexpensive way to make a small ...
A: Can you describe the pinwheel / take a picture of it so I can get a better look? If it has a ...
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| science experiment with food acids | 10/28/2008 |
Q: My 5th grade son is doing his first independent science project at school. He wants to do something ...
A: You are correct about the lemon juice - I typically see store bought lemon juice with a pH of a bit ...
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| science experiment with food acids | 10/27/2008 |
Q: My 5th grade son is doing his first independent science project at school. He wants to do something ...
A: 1) The role of the acid in this experiment is actually to remove the oxidized copper around the ...
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| Compounds | 10/23/2008 |
Q: What are some common household compounds other than salt, sugar, water, vineger, carbon dioxide, ...
A: Compounds are substances that consist of two or more elements that are joined together through ...
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| hygroponics | 10/14/2008 |
Q: OK hi, i have some questions about hydroponics that i need to use for my S.R.P. 1. if aquaponics(to ...
A: Good questions. Let me take them one by one. 1) While you can germinate a plant with no nutrients ...
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| Amoebas & Animals & Plants | 10/12/2008 |
Q: Are amoebas harmful or helpful to Animals and Plants? How are they harmful or helpful to animals ...
A: That's a great question. Sometimes, things can be both harmful and helpful. Amoebas are one such ...
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| variables in science | 10/12/2008 |
Q: Please explain the three varaibles of manipulative variable, response variable, and control ...
A: Hypothesis are hard. When you are stating a hypothesis, you are stating that something will happen ...
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| variables in science | 10/11/2008 |
Q: Please explain the three varaibles of manipulative variable, response variable, and control ...
A: Good question. When you are talking about the manipulative variable, you are talking about the ...
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| transform of energy | 10/11/2008 |
Q: How can you show the transform of energy by a simple experiment?
A: Turning on the lights in your room is actually an example of energy transformation. You are taking ...
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| The Egg Drop Science Fair Project | 10/7/2008 |
Q: Im Am in the 5th grade and for Science Fair this year I am doing the egg drop. I need information ...
A: During egg drop experiments, people usually design a "packaging for an egg", place the egg in the ...
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| science | 10/6/2008 |
Q: how does different fertilizer effect the growth of plants?
A: Fertilizer contains minerals and nutrients that plants need in order to grow. While many ...
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| Capacity vs. displacement | 10/5/2008 |
Q: What is the difference between capacity vs. displacement?
A: Capacity is the amount of something that another substance can hold. For example, a 2 liter bottle ...
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| Science Fair - 6th grade | 10/5/2008 |
Q: I've emailed you before, and you were a huge help. My Science Fair project is on "what is teh most ...
A: Unfortunately I have no idea how long your paper needs to be - you should ask your teacher. Is it a ...
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| Gravity | 9/29/2008 |
Q: What happens if there is no center of gravity ?
A: That's a good question. Believe it or not, every single object has a center of gravity. Usually, ...
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| experiment that my duaghter has to do | 9/23/2008 |
Q: can plants grow without soil?
A: That's a good question. Soil provides nutrients or food for the plants. As seeds have their own ...
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| amoebas | 9/17/2008 |
Q: How do amoebas cause death in humans?
A: There are a few different species (types) of amoebas that act as parasites (things that survive by ...
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| Qualitative and Quatitative | 9/16/2008 |
Q: I was wondering was qualitative and quantitative meant in the terms of an experiment. The experiment ...
A: In general, you can think of quantitative in terms quantity, or amount / number. Quantitative data ...
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| science project 8th grade | 9/12/2008 |
Q: I have a topic and a question line set up and every thing cut i don't have a kit or i don't have an ...
A: This is a good question. The first thing you have to ask is what your variables are. Your ...
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| Measuring calcium in milk | 9/10/2008 |
Q: Last year i measured the amount of vitmain c in orange juice as it is decreased or increased by ...
A: Unfortunately, there is no easy way to measure calcium. Calcium can be measured using kits that ...
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| How do you grow algae?? | 9/1/2008 |
Q: When you grow algae, can you just take a sample out of any fish tank and put it in a separate jar?? ...
A: This sounds like a great way to start growing algae. Just remember that algae are plants, so they ...
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| Puddles | 8/31/2008 |
Q: what things can live in a puddle?
A: There are many different types of animals that can live in a puddle. Oftentimes, larger animals ...
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| which is true? | 8/26/2008 |
Q: You know that teachers say that the sea is blue because it reflects the sky, I recently read a ...
A: That's actually a great question because as kids, we all learn that water is blue because of the ...
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| shadows & Sunny days | 8/25/2008 |
Q: My son is studying in 3rd grade. this term they have shadows and Sunny days as portions for their ...
A: Wow! That's a difficult question. I had to look part of it up myself! Think about the earth as a ...
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| Drums | 8/24/2008 |
Q: I was wondering if you had any cool science experiments for my kids regarding drums. Something with ...
A: One option your children have is creating a study of sound waves. Sound waves change in terms of ...
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| Drums | 8/21/2008 |
Q: I was wondering if you had any cool science experiments for my kids regarding drums. Something with ...
A: While I don't know your grade level, I hope some of this helps. I think it might be interesting to ...
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