Across
- 3. relative dating method for rocks
- 4. hot fluids has ____ density
- 6. molten rock below Earth's crust
- 8. the zone where one plate dips below another
- 10. the very most outer layer of Earth
- 11. measurement of exact age
- 12. molten rock above Earth's crust
- 13. absolute dating method for rocks
- 17. when tension between plates suddenly releases energy, it forms . .
- 18. changes in *this* over time is how scientist measure exact rock age
- 19. cold fluids has ____ density
- 20. describes why something happens in nature
- 22. cycles of hot fluid rising & cold fluid falling
- 23. the solid layer of Earth; contains crust & upper mantle
Down
- 1. where convection occurs under Earth's surface
- 2. boundary where two plates collide into each other
- 5. when you put an age to something
- 7. Lithosphere is broken up into many . . .
- 8. the study of rock layers & fossils inside them
- 9. younger rock layers are on top of _____ rock layers
- 14. hot, melted rock is called . . .
- 15. describes what happens in nature
- 16. dating method that makes an educated guess
- 20. boundary where two plates slides past each other
- 21. boundary where two plates pull apart