Plate Tectonics Crosword
Across
- 3. the theory that the continents can drift apart
- 6. made of solid iron and nickel
- 8. an underwater mountain range
- 9. one giant super continent
Down
- 1. made of liquid iron and nickel
- 2. a process where new oceanic earth forms at ridges
- 3. a boundary that occurs when two plates collide
- 4. a boundary that occurs when two plates collide and one slides under the other
- 5. a boundary that occurs when two plates separate
- 7. influential on the theory of plate tectonics