Earth's cycles

Examines the life cycles of various plants and their importance to the Earth's environment.

Examines the two main groups that make up the animal kingdom and describes their importance to the Earth's natural environment.

Photographs, diagrams, and illustrations describe the Earth's natural cycles, how the cycles all connect with each other, and their importance to the environment.

Describes the components of the food cycle: plants, plant eaters, meat eaters, and decomposers; discusses the balance of nature and factors, such as pollution and overfishing, that disrupt that balance; and includes a hands-on activity.

Examines the Earth's water cycle and its importance to the over-all environment.

Photographs, diagrams, and illustrations describe the various types of rocks that make up the rock cycle, how rocks are formed, how the rock cycle is linked with Earth's other cycles, and the importance to the Earth's environment.