AboutRalph Salier-Hellendag Expertise Science Fair Judge for many years and experience with robotics, biology, chemistry, industrial processes, metalurgy and metal forming.
Experience Science Fair Judge for many years and have helped several students get to state level competition. Most recently 2 of my students received state level awards and one went on to the nationals in Washington DC.
Education/Credentials BA Archaeology - Anthropology
MA Business Anthropology
Question My 3rd grader needs idea's for an invention, that she can make from recyclable products.
Answer Hi Serena,
Here are several ideas,
1) a sound attenuation box. Take a box big enough for a radio to fit into and then line the inside of the box with empty egg holders from the market. (the side that holds the eggs). Then turn the radio on and put it into the box and see if the loudness of the radio is reduced by the egg cartons.
2) a flexible straw pea shooter. Using a flexi-straw. Make a spit ball with some paper towel to fit into the end of the straw. Bend the "flexi" part of the straw so that you can shoot the spit ball around the corner. Add a small mirror to the straw so that you can see who is coming around the corner.
3) A flower pot Greenhouse. Plant a seed in a pot and then water it per the instructions on the seed bag. Then place a plastic bag (clear) over the top of the pot. Make sure that you seal the bag to the pot to retain the moisture in the soil. Place it on a window sill and watch the plant grow.
