Boundaries

1234567
Across
  1. 3. A long, narrow, steep-sided depression in the ocean bottom
  2. 4. The rising, spread, sinking of gas, liquid, and molten materials caused by the application of heat
  3. 7. A collision between two plates, when one sinks into the mantle underneath the other plate
Down
  1. 1. In Earth's crust when molten rock is squeezed out onto the Earth's surface
  2. 2. Two plates that separate/ divide from each other
  3. 5. Two plates that slide by each other
  4. 6. Two plates that collide with one another