Across
- 3. a section of the lithosphere that slowly moves over the asthenosphere, carrying pieces of continental and oceanic crust
- 4. the name of the single landmass that broke apart 200 million years a ago and gave rise to today’s continents
- 7. the hypothesis that the continents slowly move across earth’s surface
- 8. a plate boundary where two plates move past each other
Down
- 1. a plate boundary where two plates move away from each other
- 2. a plate boundary where two plates move toward each other
- 5. the amount of mass in a given space mass per unit volume
- 6. a break in earth’s crust where massages of rock slip past each other
- 9. deep valley that from where two plates move apart