Simple text and color photos describe a tank, explaining what each of its parts are and showing them up close. The huge wheels, powerful engines, and loud noises of working machines seem to entrance children for hours. Now young students can pore over color photos as they learn about their favorite machines--inside and out. Each book builds vocabulary as it describes in simple language the basics of a machine: what it looks like, what it's used for,...

A collection of profiles of children and young adults whose scientific inventions made an impact on the world, including Louis Braille who discovered a way for the blind to read and write.

Teach children how to become little scientists with this hands-on book. They will learn fascinating things about such topics as energy, gravity, weight, light, and matter. Includes ways to make a scale, bend light, trap gas, and more. Kids will prove scientific facts for themselves by testing them out with challenging experiments created especially for them. Hardcover with hidden spiral.

"Did you know that the number of atoms in a cookie is about the same as the number of stars in the universe? Geoff Engelstein tackles the big questions of the universe and how it works using the sweet, simple chocolate chip cookie as guide. By exploring what goes into the cookie-the ingredients and the steps-we learn about how everything works, from the tiny world of subatomic particles to galactic clusters. Filled with fascinating facts and laugh-out-loud...