The composition and behavior of the Earth's mantle. [Free Registration/Login may be required to access all resource tools.]

[Free Registration/Login may be required to access all resource tools.] Discusses what a tectonic plate is and how scientists can recognize its edges, how the plates move by convection in the mantle, the three types of plate boundaries...

[Free Registration/Login may be required to access all resource tools.] The lithosphere is made of the brittle crust and uppermost mantle and lies on the plastic asthenosphere. Read about the properties of the lithosphere and asthenosphere.

[Free Registration/Login may be required to access all resource tools.] Identifies the various layers of the Earth, including the crust, mantle, core, lithosphere, and asthenosphere.

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

This comprehensive study guide covers the main terms and concepts needed for an earth science unit on the earth's tectonic plates. Review questions are included at the bottom of the study guide.

This comprehensive study guide covers the main terms and concepts needed for an earth science unit on the earth's interior. Review questions are included at the bottom of the study guide.

[Free Registration/Login may be required to access all resource tools.] Volcanoes can form at hotspots away from plate boundaries. This article discusses hotspot activity and how it leads to volcanism in the oceans.

[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.] Volcanoes most often occur at plate boundaries.