Instructional module focusing on Charles Darwin's explanation of natural selection as the mechanism for evolution. Discusses how this force of natural selection promotes changes in species over time. Site also includes an interactive...

Instructional module focusing on binomial nomenclature. Discussion includes Carolus Linnaeus' taxonomic classification system for naming all species. Site also includes an interactive practice quiz and links relating to the topic.

Instructional module focusing on biological classification. Discussion includes Carolus Linnaeus' taxonomic classification system for organizing and classifying living things. Site also includes an interactive practice quiz and links...

The Plant Watch website is designed to teach students how to record observations about plants. The site provides good information about the parts of plants and the section, "Plant Descriptions," will lead you to detailed information on...

This is an extensive learning module on biodiversity and its decline. It looks at ways biodiversity is threatened, the possibility of another mass extinction, the causes and consequences of habitat loss, factors that drive biodiversity...

Instructional module focusing on why species change over time through behavioral and physical adaptations. Discusses how environmental mechanisms influence adaptive evolution. Site also includes an interactive practice quiz and links...

Describe the habitat, food web and ecosystem of shark species. Identify threats to sharks and explore how top predators help to maintain the balance of nature within ecosystems. This lesson plan also contains an interactive game.