Plate Tectonics
Across
- 4. A deep valley that forms where two plates move apart.
- 5. A plate boundary where two plates move toward each other.
- 8. A plate boundary where two plates move away from eachother.
Down
- 1. A well- tested concept that explains a wide range of observations.
- 2. A plate boundary where two plates move past each other in opposite directions.
- 3. The theory that pieces of Earth’s lithosphere are in constant motion, driven by convection currents in the mantle.
- 6. A section of the lithosphere that slowly moves over the asthenosphere, carrying pieces of continental and oceanic crust.
- 7. A break in Earth’s crust where masses of rock slip past each other.