Geoscience 2022-2023 Review

1. A discontinuity or break within a body of rock.
4. The theory that changes in the earth's crust during geological history have resulted from the same recurring actions.
12. A low frequency wave within the electromagnetic spectrum that is often used for broadcasting.
14. A commonly found mineral of the Earth's crust that has different effects on magma.
16. The force that keeps everything from floating away determined by the mass an object holds.
18. The process by which sediments and materials are worn away while transported by natural features.
19. The explosion of a star in space.
20. The concept of germs and the promotion of health to the public.

2. When sediments are taken by strong waves to shore, causing more material to be broken down.
3. The layer immediately below the Earth's crust that contains the world's magma.
5. A push or pull against an object.
6. A main type of rock that is formed from melting or cooling.
7. The branch of geology that deals with identifying ages of strata.
8. A prediction or theory using an ¨If/Then¨ statement.
9. An increase of wavelength and decrease of frequency among the electromagnetic spectrum which allows us to know that a galaxy is moving away from us.
10. A giant cloud of gas in space.
11. A disconformity where a rock becomes ridge-shaped where the peak is upward.
13. A procedure taken to make a new discovery or test a hypothesis.
15. A main rock type formed from weathering and erosion.
17. Hot, less dense material will rise while cold, denser material will sink.