A simple description of how corn was discovered and used by the Indians and how it came to be an important food throughout the world.

How can you tell dinosaurs apart?You can learn a lot about dinosaurs by looking at their bones. Some dinosaurs were very small; others were huge. Some had sharp, pointy teeth for eating meat; most plant-eaters had flat, dull teeth. Some dinosaurs' hipbones pointed forward, while other dinosaurs' hipbones pointed backward. There were dinosaurs with bony armor on their backs and others with deadly horns on their heads. Today scientists have divided...

Explains the phases of the moon--the changes that seem to happen to it as it goes around Earth.

Describes the physical characteristics of a variety of snakes and how they hunt, catch, and eat their prey.

This books describes how and why fireflies make their light, how to catch and handle them, and several uses for firefly light.

Describes various scientific theories which explore the extinction of the dinosaurs.

Brief text and illustrations describe the various parts of the foot and all the things feet help us to do.

Describes the life cycle of an apple from its initial appearance as a spring bud to that point in time when it becomes a fully ripe fruit.

Explains the basic characteristics of weather; temperature, humidity, wind speed and direction, air pressure; and how meteorologists gather data for their forecasts.

Even though Mount Everest measures 29,028 feet high, it may be growing about two inches a year. A mountain might be thousands of feet high, but it can still grow taller or shorter each year. Mountains are created when the huge plates that make up the earth's outer shell very slowly pull and push against one another. Read and find out about all the different kinds of mountains. The earth's continents rest on plates that move slowly across our planet's...