Across
- 2. When two plates are moving towards each other, we refer to them as ________ plate boundaries.
- 4. This crust has the same density throughout. When these plates come together, they push one another up, forming mountains.
- 5. Plates extend deep into the Earth's ______.
- 6. This determines whether the plates will either be forced over or under another plate.
Down
- 1. The edges of Earth's plates meet at plate ________.
- 3. This crust can form a trench at a subduction zone.
- 7. When two plates slide past one another in opposite directions, this is called a ______ boundary.