Geology Grace Grubb

3. outmost, rocky layer of Earth
5. to examine in detail for a purpose
7. a natural spring that sends hot water and steam suddenly into the air from a hole in the ground
10. molten rock that makes up Earths mantle and becomes igneous rock when it cools
12. the outside or top layer of something
14. the slow pulling apart of land that is cause by plate movement
15. layer inside Earth, between the mantle and inner core
17. a feature that forms on the surface of a planet
19. something we observe to be similar over and over again
20. how often or fast something happens

1. a sudden shaking of the earths surface
2. a set of interacting parts forming a complex whole
4. innermost part of Earth, made of solid iron and nickel
6. hot liquid rock on the surface of the earth
8. the sudden pushing out of something, like lava from a volcano
9. evidence of life from the past
11. an object or diagram that makes it easier to understand something
13. a long, deep indentation in the ocean floor formed when two plates move together
16. moving apart in different directions
18. a layer of Earths crust