[Free Registration/Login may be required to access all resource tools.] Identifies and describes the two internal layers of Earth.

Lesson plan with subsequent pages to use with the lesson. Images with landform word match up and additional work on earth modeling.

How scientists can learn information about the past from fossils. [Free Registration/Login may be required to access all resource tools.]

[Free Registration/Login may be required to access all resource tools.] Looks at how environmental factors put limits on population sizes.

[Free Registration/Login may be required to access all resource tools.] How Wegener's hypothesis of continental drift was refined.

[Free Registration/Login may be required to access all resource tools.] Describes how energy is transferred from one organism to another.

Covers divergent plate boundaries on land.[Free Registration/Login may be required to access all resource tools.]

A lesson where students study the legacy of Rachel Carson.

Help students understand how mountains are formed with this lesson plan about constructive forces.

Learn about the first form of life on Earth, the cell.

[Free Registration/Login may be required to access all resource tools.] This is a basic introduction to the scientifice method that includes links to instructional videos, grade-level texts, interactive activities, and review materials.