Expose your class to the steps of the nitrogen cycle with this short clip. Colorful computer imagery and animation explain how nitrogen travels from the atmosphere as a gas into plants and soil, where bacteria convert it into nitrates....

For this life cycles worksheet, students compare the life cycles of 2 different species and answer short answer questions about them. Students can choose the species to compare and then answer 6 questions.

In this ecology activity, students read the vocabulary words and then categorize a species found in a field, meadow, or fencerow in their state or region. Students complete 6 problems.

In this bluebirds instructional activity, students categorize bluebird species found in their state and define vocabulary related to it. Students complete 6 vocabulary words.

In this ecology vocabulary exercise:  wetlands activity, students read the definitions of 8 words, then categorize a species found in a wetland in their region.  This page has numerous links to helpful web resources.

Reproduction in Plants and Animals. The ability to produce more organism similar to themselves is a very important characteristic of all living organisms. The process by which they do so is known as reproduction. [0:21]

This segment covers the lifecycles of various plants and animals. Illustrations begin with the production of a gamete and describe the processes that occur throughout the lifespan of living creatures.

This landing page includes learning modules on the following topics of: animals, plants, microorganisms, life cycles and reproductions, food chains, habits, humans and the environment, adaptation, inheritance, and evolution.

A virtual lab that explores how offspring inherit different traits from their parents. Investigate these traits both in animals and plants. Understand that variations in offspring can lead to traits that allow survival. Lab includes...