Read and find out about how to discover more about the air that's all around you in this colorfully illustrated nonfiction picture book. What weighs 5 quadrillion tons but can't knock you down? Air! The air that surrounds the earth weighs an enormous amount, but you can't even feel it unless the wind is blowing. You can't see air or smell it, either. But we know it's there, and we couldn't live without it. When it's not windy, it can be easy to...

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...

Read and find out about one of nature's most mysterious forces-the earthquake. Some earthquakes are so small that you don't even feel them, while others can make even big buildings shake! Learn why earthquakes happen, where they are most likely to occur, and what to do if one happens near you.

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

Explains how sounds are made and the purposes they serve for both humans and other animals.-

An introduction to light and how it helps us to see profiles different kinds of light, including sunlight, firelight and electric light, and provides interactive experiments readers can perform at school or at home.

Describes the physical characteristics, behavior, and life cycle of crickets while giving particular emphasis to how they chirp.

Explains why oil spills occur and how they are cleaned up and suggests strategies for preventing them in the future.

Explains how the water cycle leads to different types of weather patterns.