An introduction to the human skeletal system, explaining how the 206 bones of the skeleton join together, how they grow, how they help make blood, what happens when they break, and how they mend.

Explains how leaves change their colors in autumn and then separate from the tree as the tree prepares for winter.

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...

Uses observations of bean seeds planted in egg shells to demonstrate the growth of seeds into plants.

Painted Lady Butterfly growth stages are seen through the eyes of children in a primary classroom. A real plus is the diversity of the students. Illustrations are large, bright, and detailed. Information tidbits are creatively placed around some sketches as if the respond to the thoughts of a questioning child. Includes a guide to common butterflies and places to see butterflies.

Explains how bacteria and viruses affect the human body and how the body fights them.

Explains how fossils are formed and what they tell us about the past.

This books explains how sounds are made, and the purposes they serve both for humans and other animals.

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.

Explains the processes by which a hamburger and other foods are used to make energy, strong bones, and solid muscles as they pass through the digestive system.