Publisher's Synopsis
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.
