Description - Scientific American, Winning Science Fair Projects, Grades 5-7 by Bob Friedhoffer
"EVERYTHING YOU NEED TO KNOW FOR WINNING SCIENCE FAIR PROJECTs. Learn Experiments that help you to: Build Electric Circuits; Create an Object that Has Only One Side; Break Light into its Component parts; Create Static Electricity; Discover How Light Works; Find Out Why Earth Rotates and What; Keeps Us on the Ground; Examine How Waves Work; Discover Your Green Thumb. Featuring Experiments in: Electricity; Electromagnetism; Gravity; Plant Growth; Light and Optics; Surfaces; Reaction Time; Centrifugal Force;Sound Waves; Grades 5-7"
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Scientific American, Simple Science Fair Projects, Grades 3-5
