CK-12 Foundation
Ck 12: Earth Science: Volcanoes at Plate Boundaries
[Free Registration/Login may be required to access all resource tools.] Volcanoes most often occur at plate boundaries.
CK-12 Foundation
Ck 12: Earth Science: Earth's Tectonic Plates
[Free Registration/Login may be required to access all resource tools.] Earth's tectonic plates and how they move.
Curated OER
National Park Service: What on Earth Is Plate Tectonics?
An easy-to-understand explanation of what plate tectonics is. Contains information about the inner parts of the Earth, the difference between the three types of plates, and numerous maps and illustrations.
CK-12 Foundation
Ck 12: Earth Science: Volcanoes at Plate Boundaries
[Free Registration/Login may be required to access all resource tools.] Volcanoes most often occur at plate boundaries.
CK-12 Foundation
Ck 12: Earth Science: Divergent Plate Boundaries
Covers divergent plate boundaries on land.[Free Registration/Login may be required to access all resource tools.]
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: Divergent Plate Boundaries Study Guide
This comprehensive study guide covers the main terms and concepts needed for an earth science unit on divergent plate boundaries. Review questions are included at the bottom of the study guide.