cycles

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

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.

"Living things depend on a few invisible but essential nutrients to survive. These nutrients each have their own purpose. But they are also interconnected in the nutrient cycle"--Provided by publisher.

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

Water is essential to life on our planet. Water is constantly moving between Earth's surface, the air, and the ground. But did you know that water cannot be created or destroyed? Or that water is not only a liquid but also a solid and a gas? See the water cycle in action in this fascinating book.