cycles

Describes the cycle of soil decomposition and the water cycle, as well as how to develop a compost pile for recycling pea pods and other garden products into compost to feed a garden.

Looks at the cycle of water from bodies of water, to the atmosphere, to the land.

Text and photographs explore how coal is formed.

"This book describes and illustrates the rock cycle"--Title page verso.

"This book describes and illustrates the carbon cycle"--Title page verso.

Photographs and simple text introduce children to the water cycle and talk about the importance of keeping water clean.

An examination of the water cycle and the importance of water.

Explains what a water cycle is, the work of a hydrologist, and how to protect the earth's water supply.

Follows two drops of water as they meet in a lake and, through evaporation, condensation, precipitation, and evapotranspiration, travel together for thousands of years.

Carbon is everywhere. It is constantly moving between the air, the oceans, rocks, and living things. But did you know that none of these things would exist without the carbon cycle? Or that humans have caused the carbon cycle to be out of balance? Learn more about the carbon cycle in this fascinating book.