Franklyn M. Branley Books
Air Is All Around You
Describes the various properties of air and shows how to prove that air takes up space and that there is air dissolved in water.
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What Makes Day and Night
A simple explanation of how the rotation of the earth causes night and day.
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Gravity is a Mystery
Explains in simple text and illustrations what is known about the force of gravity
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Planets in Our Solar System
Introduces the solar system and its nine planets. Includes directions for making two models, one showing relative sizes of the planets and the other their relative distances from the sun.
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