Across
- 3. with oxygen
- 6. dating,Technique used to date materials
- 9. features of land surfaces
- 10. alive or living like an animal
- 12. tectonics, how major land forms are created
- 13. magnetism, study of earth magnetic field
- 16. boundary, areas where to plates collide
- 17. a rock from space
- 18. boundary,two tectonics plates pass laterally
- 20. forces, natural breakdown of earth's surface
Down
- 1. boundary, when two tectonics plates move apart
- 2. composed of living things
- 4. zone, oceanic material of one plate
- 5. atoms with the same number of protons
- 7. heat transfer for liquids and gases
- 8. without oxygen
- 11. study of earthquakes
- 14. changes that occur at the same time
- 15. forces, forces that build
- 19. nucleus of continent