What goes up must come down. Everybody knows that. But what is it that pulls everything from rocks to rockets toward the center of the earth? It's gravity. Nobody can say exactly what it is, but gravity is there, pulling on everything, all the time. With the help of an adventurous scientist and his fun-loving dog, you can read and find out about this mysterious force.
Young stargazers learn about different star colors and brightnesses, how to locate major constellations, and how to make mini planetariums by using coffee cans and flashlights. ‘A fine job of encouraging young people to look at stars and constellations. . . . Highly recommended as a science resource book." —Science and Children. "A dandy book for [primary grade] readers." —AP.
Don't jump!rnrnIf you're on the space shuttle, that is. Astronauts never jump in space. They usually drink out of straws, and they lift tons of equipment as if it were light as air. Find out more in this information-packed voyage into space.
The sun brings heat, warmth, and energy to the Earth. What is the sun made of? How big is it? How far away? Read and find out!
Explains basic facts about the Big Dipper, including which stars make up the constellation, how its position changes in the sky, and how it points to the North Star.