具体描述
The perfect science fair idea books . Spectacular Science Projects Janice Vancleave's Electricity How do you make a battery out of a lemon? Can a magnet produce electricity? How does a flashlight work? Janice VanCleave's Electricity includes 20 simple and fun experiments that allow you to discover the answers to these and other fascinating questions about electricity, plus dozens of additional suggestions for developing your own science fair projects. Learn about electric charges with a simple experiment using modeling clay and a plastic straw; about voltage using a bowl, paper towels, and a raw egg; about conductors with some clothespins, aluminum foil, and a flashlight bulb; and much more. All experiments are safe, use inexpensive household materials, and involve a minimum of preparation and clean up. Children ages 8-12 Also available in the Spectacular Science Projects Series: Janice VanCleave's Animals Janice VanCleave's Earthquakes Janice VanCleave's Gravity Janice VanCleave's Machines Janice VanCleave's Magnets Janice VanCleave's Molecules Janice VanCleave's Microscopes and Magnifying Lenses Janice VanCleave's Volcanoes Janice VanCleave's Weather
