Why is the ocean salty? How do whales stay warm? What causes tides to rise and fall? How do oil spills affect ocean animals? Now you can discover the answers to

How do plants make their own food? Why do the different strings on a guitar have differentsounds? What does the color of a star tell you about how hot the stari

The author's hands-on science books for kids ages 8 through 12 have set a new standard in science activity books. Children, parents, and teachers have come to l

Describes twenty of the most prominent constellations, including the Big Dipper, Orion, and Cancer, explains how to locate them, and provides instructions for r

Provides instructions for over 200 short experiments in astronomy, biology, chemistry, earth science, and physics.