Let's-read-and-find-out books

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Rain and hail

Simple explanation of the water cycle, clouds, water vapor, condensation, evaporation, rain, and hail.

Rain and hail

Simple explanation of the water cycle, clouds, water vapor, condensation, evaporation, rain, and hail.

It's nesting time

Describes the various methods of nest-building used by many different birds.

What makes a shadow?

A simple explanation of how a shadow is formed.

How many teeth?

Evolution

1989
Describes, using evidence found in fossil layers, how one-cell organisms evolved into complex plants and animals.

Spider silk

1964
Explains how a spider spins its web and the many uses of that strong silk.

Animals in winter

1963
A simple introduction to the habits of birds, bats, butterflies, and mammals in winter.

Salt

1965
Discusses what salt is, where it is found, and some of its many uses; includes a simple experiment for growing salt crystals.

Starfish

1962
A simple introduction to the appearance, growth, habits, and behavior of starfish.

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