Standard 3: Students will understand that gravity, density, and convection move Earth’s plates and this movement causes the plates to impact other Earth systems.

Objective 1: Explain the evidence that supports the theory of plate tectonics.
d. Explain Alfred Wegener’s continental drift hypothesis, his evidence, and why it was not accepted in his time.
e. Evaluate the evidence for the current theory of plate tectonics.
Last modified: Friday, 7 October 2011, 9:55 AM