CK-12 Foundation
Ck 12: Fourth Grade Science: Earth Science: Theory of Plate Tectonics
[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...
CK-12 Foundation
Ck 12: Earth Science: Continental Drift Study Guide
This comprehensive study guide covers the main terms and concepts needed for an earth science unit on continental drift. Review questions are included at the bottom of the study guide. Part I of II.
PBS
Pbs Learning Media: Continental Drift: What's the Big Idea?
Students learn how the theory that explains the position of Earth's continents was established and later modified.