Why: Experiments for the Young Scientist - Tapa dura

Why do helium balloons rise? Why does soap make suds? Why do spiders spin webs? Why is the ocean salty? Why are fossils found in rocks? This book answers 49 of the most frequent questions children ask about science. These fun, simple, and safe experiments aim to satisfy a child's natural curiosity about science by demonstrating specific scientific principles and explaining how they affect us in our daily lives. Children ages 8 through 13 can explore such scientific topics as engineering, astronomy, chemistry, meteorology, biology, and physics. Each experiment poses a question to the reader and then follows with show-how, step-by-step instructions, illustrations, and materials list that ensure successful completion. Most of the required materials can be found in the household or purchased cheaply.