ISBN-13: 9780060594152 / Angielski / Miękka / 2006 / 40 str.
When it's not windy, it can be easy to forget about air. But air is everywhere-it 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, eye-catching illustrations, tells you how to discover the air that's all around you.