When it's not windy, it can be easy to forget about air. But air is everywhereâit fills your house, your car, and even your empty milk glass. In fact, a regular room holds about 75 pounds of it! This Level 1 book, reillustrated with John O'Brien's clever, eyeâcatching illustrations, tells you how to discover the air that's all around you.
About: 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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