Across
- 1. __________ _____________ occurs at spreading ridges where magma cools and hardens, pushing the older rock farther away
- 5. A divergent boundary found in the middle of the Atlantic Ocean
- 7. These form when two continental plates move together
- 8. Plate boundary at which tectonic plates come together
- 9. Plate boundary at which tectonic plates slide past each other
- 10. When an oceanic plate subducts below a continental plate a deep underwater valley called a ___________ forms.
- 11. A ____________ valley commonly occurs when two continental plates move away from each other (hint: there is a famous example in Africa!)
Down
- 2. Famous transform fault in California
- 3. __________ _____________ happens subduction zones where one plate is pulled underneath another
- 4. At the boundary between two oceanic plates a deep _________ ____________ forms
- 6. Plate boundary at which tectonic plates move apart
- 8. These currents occur in the mantle and help to drive plate movement