Across
- 3. flow that transfers heat in a fluid.
- 4. Major belt of volcanoes.
- 7. Measure of how mass is in a given substance.
- 8. Mixture of gases, water, and rock-forming.
- 10. Boundary where plates move apart.
- 12. super continent from 300 million years ago.
- 15. broken pieces of the lithosphere.
- 16. Heat transfer by movement of a fluid.
- 20. Continents going over Earth's surface.
Down
- 1. any trace of an ancient organism.
- 2. Boundary where plates slip
- 5. Earth's plates and plate motions
- 6. string of islands.
- 9. Boundary where plates come together.
- 11. landform made when Earth's crust diverges.
- 13. Magma when it reaches the surface.
- 14. Heat transfer by things that are touching.
- 17. Transfer of energy that is carried by rays.
- 18. Mountain that forms when molten material rises.
- 19. breaks in Earth's crust where rocks have slipped.