Plate Tectonics Crossword
Across
- 3. the innermost layer of Earth
- 5. energy transfer by the movement of a material
- 8. a scientific hypothesis stating that the landmasses on earth were once a solid piece but drifted apart
- 10. a measurement of how much material is in a volume
- 12. the period in which all the continents were joined together to form a supercontinent
- 13. plate boundary in which tectonic plates move toward each other
- 14. the time period in between the Triassic and Cretatious period
- 15. one of the two continents in the Triassic period; consists of today's North America and Asia
- 16. plate boundary in which the plates are moving away from each other
- 18. lower layer of the mantle; material bends and moves easily
- 22. plate boundary in which plates slide past each other
Down
- 1. the supercontinent that consisted of all the continents put together like a jigsaw puzzle
- 2. huge underwater mountains at the edges of tectonic plates
- 4. one of the two continents in the Triassic period; consists of todays South America, Africa, India, Australia, and Antarctica
- 6. a switch in Earth's magnetic north and south
- 7. the top layer of the mantle and the crust
- 9. layer of earth in between the innermost layer and the lower mantle
- 11. molten rock that is below the Earth's surface
- 17. substance that the innermost layer of Earth is mostly made of
- 19. when one tectonic plate slides beneath another plate
- 20. a place where heated rock rises in the middle of a tectonic plate
- 21. the outermost layer of Earth