Across
- 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.
Down
- 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.