1) Review motion of plates to form continents - click here.
2) Review the Principle of Superposition - click here.
3) Review the Principle of Original Horizontality - click here.
4) Review Folded Layers - click here.
5) Review Faulted Layers - click here.
6) Review what forms at each type of plate boundary (USGS) - click here.
7) Review types of volcanoes - click here.
Quiz Practice:
1) Plate Tectonics Quiz - 25 questions with hints. Click here.
2) Volcano Quiz - 25 questions with hints. Click here.
3) Earthquake Quiz - 25 questions with hints. Click here.