Across
- 1. zone area where an oceanic plate goes down into the mantle
- 4. boundary boundary between two plates that are moving apart
- 5. boundary place where two plates move together
- 7. plasticlike layer of Earth’s surface below the crust and a part of the upper mantle
- 8. outermost layer of Earth’s surface
Down
- 2. current cycle of heating, rising, cooling, and sinking
- 3. rigid layer of Earth’s surface made up of
- 6. boundary plate boundary that occurs when two plates sections of Earth’s crust and upper mantle