NOAA
Noaa: Stressed Out! [Pdf]
In this lesson, students investigate factors that affect the health of the oceans. These include overfishing, the destruction of habitats, the invasion of foreign species, the impact of pollution, and the increasing acidification. An...
ClassFlow
Class Flow: Plant and Animal Habitats
[Free Registration/Login Required] This lesson explains plant and animal habitats with brilliant pictures and photos. It also includes discussion and non-Activote questions.
CK-12 Foundation
Ck 12: Life Science: Mammal Characteristics
[Free Registration/Login may be required to access all resource tools.] What is a mammal? They walk, run, swim, and fly. They live in the ocean, fly in the sky, walk on the prairies, and run in the savanna. There is a tremendous amount...