Across
- 2. boundary where two plates move apart, or diverge; occur at the mid-ocean ridge; on landforms a rift valley,
- 5. supercontinent; means ''all lands'',
- 6. ocean floor; made up of basalt; dense rocks' thinner than continental crust,
- 8. where two plated move together; or collide; creates a subduction zone when plates are ocean crust collide mountain building takes place,
- 10. composed of crust and uppermost mantle---layer of solid hot rock,
Down
- 1. where ocean bends downward and subduction occurs--the ocean floor does this due to density and gravity,
- 3. slowly wear away mountains and other features on earth's surface,
- 4. large sections of the lithosphere and crust; when one moves it effects all other plates,
- 7. second layer of the earth's interior,
- 9. made of metallic iron and nickel--thick liquid; surrounds the inner core,