Books in 20 Questions: Science series

FOR USE IN SCHOOLS AND LIBRARIES ONLY. Answers twenty questions about the human body, ranging from smelly feet to ear wax to blushing.

Though they are far too small to be seen with a magnifying glass, much less with the naked eye, atoms and molecules make up every object we encounter. Readers will learn all about these tiny units of matter in this interesting book.

Looks at the food technology industry, covering such topics as food storage and safety, food flavor, substitute foods, and genetic modification of food.

Discusses how the resources from the rain forest are used for medicinal purposes.

Explains the vast distances in space and describes different types of stars in the universe using a question-and-answer format

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Answers such questions as "What is electricity?," "How does a telephone work?" and "How does detergent get plates clean?"

How can we make the icy path less slippery? How can we choose how fast to go down a slide? What's the best way to get muddy clothes clean? In this boldly original book, a group of young friends ask intriguing questions about the world around them, inspiring readers to speculate, investigate, and find out the answers for themselves.

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Describes the technology used in extraterrestrial research.