Energy is everywhere! Without even taking a step you can see a dozen kinds: Solar. Heat. Light. Fluid. Sound. Pressure. Electrical. Chemical. Mechanical. Magnetic. Electromagnetic. Gravity. And many more. You'll find 55 science fair projects here, and all are designed as "around-you-science," based on ideas you find right where you are. What's under that old board on the ground? How many rings are in the trunk of that fallen tree? How many stars can you see with your naked eye? By answering ordinary questions like these, you can explore many mysterious worlds. Show what kinds of energy are released in a storm. Point out where your home loses heat in winter or cool air in summer, and how to prevent it. Explain how microwaves heat food without raising the inside temperature of the oven. How your body turns food into energy. How trees act as air-conditioners. Or how a radio takes sound energy out of the air. Every experiment is clearly explained and illustrated. Just remember, the greatest form of energy of all is--your curiosity! 96 pages, 120 b/w illus., 8 1/4 x 11. NEW IN PAPERBACK
Grade 4-6AAlthough there are several interesting activities here, most are very basic and it is questionable whether they are really up to science-fair standards. Most are quick demonstrations or parent/child activities that focus on basic energy-related concepts. Several are devoted to exploring energy transfer and storage in different materials. A few are somewhat odd, requiring only paper and pencil, suggesting that readers categorize home appliances, list ways to conserve fossil fuels, learn to read an electric meter, list items that could be unplugged without causing inconvenience, and enumerate ways to save energy at home and school. While these are all admirable goals, they do not really constitute experiments. Many are, however, a lot of fun. There are also a few simple wiring projects involving batteries, lamps, and even solid-state components that are fascinating and teach electronic principles. There is even an attempt at practical skills, as youngsters are encouraged to learn how to calculate the cost of operating different electrical devices. Instructions and diagrams are down-to-earth and clear but very brief. Concluding questions help students evaluate the results of the activity. Safety concerns are repeated frequently, and when adult supervision is needed, the list of necessary equipment includes "an adult." An additional set of serviceable, easy science activities and experiments.AJeffrey A. French, Cleveland Heights-University Heights Public Library, OH
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