Across
- 2. a thick layer of hot, slow-moving, solid rock
- 7. the jigsaw-like fit of continents
- 14. layers of the earth
- 15. a plate with thinner oceanic crust descends beneath a plate with thicker continental crust
- 17. the outer layer of the earth
- 18. Earth's moving puzzle pieces
- 19. its liquid state is composed of nickel and iron
- 20. symmetrical magnetic stripes on either side of mid-ocean ridges
Down
- 1. primarily composed of silicate rocks like granite and basalt
- 3. mountain formation
- 4. outermost rigid layer
- 5. innermost part composed of iron and nickel
- 6. coldest part of atmosphere where meteors burn up
- 8. place where tectonic plates slide sideways past each other
- 9. crack or fracture
- 10. matching shapes and rock formations of continents that once fit together
- 11. area where tectonic plates move apart
- 12. hot,solid, metal ball
- 13. plates collide
- 16. located below the lithosphere