Across
- 1. A liquid layer in Earth's interior made of molten iron and nickel.
- 5. Upper mantle below the lithosphere. The tectonic plates float on this.
- 8. All of the continents on Earth used to be joined and are in constant motion
- 9. The type of plate boundary where two plates separate or divide
- 10. The thickest part of Earth's interior and where convection currents are located
- 13. Moves the tectonic plates by the heating and cooling of magma
- 14. The process that occurs when one plate sinks beneath another plate
- 15. The type of plate boundary where two plates slide past each other
Down
- 2. The type of plate boundary where two plates collide
- 3. German scientist who proposed the theory of continental drift
- 4. Supercontinent that included all current land masses before they split apart
- 6. The deepest parts or ditches of the ocean floor
- 7. The solid interior of our Earth that is made out of nickel and iron
- 11. The broken sections of Earth’s crust
- 12. An underwater mountain range, formed by the movement of plates