Across
- 3. the thin top layer we live in is the _________
- 5. Pangaea split into these and islands
- 6. when a tectonic plate cracks upward, it _______
- 8. the crust is a puzzle of these
- 12. middle earth is called the ________
- 13. what the ancient ‘supercontinent’ is called
- 14. when earth wears away due to weather or rivers it is ___
- 18. magma when it explodes is called this
- 19. heated silica in sand is turned into this
Down
- 1. the scale used to measure earthquakes
- 2. rocks we eat in pills
- 4. people live on these smaller ‘continents’
- 7. When tectonic plates rub it causes an _________
- 9. spews out and makes an island
- 10. liquified magma is _______ rock
- 11. a type of soil we make into pottery
- 15. plants and fossils pressed down in the earth become thick __
- 16. lava under the crust is called this
- 17. when a tectonic plate bends into a mountain, it ______