This 23 slide PPT presentation can be used over a period of 5-6 days to present various concepts. It also includes 2 activities for students to complete. I use this over a period of a few days to teach the topic.
The PPT covers the following concepts:
* Wegner and Hess - roles in our changing Earth
* Continental Drift
* Sea Floor Spreading
* Lithosphere Plates - 2 types
* Divergent and Convergent Boundaries