Across
- 4. a variable in a science experiment that stays the same
- 5. a variable in a science experiment that the scientist changes
- 6. caused by the gravitational pull of the moon and sun
- 8. scatters light waves
- 9. the amount of salt in water
- 11. when Earth's plates move apart from each other
- 12. to move sediment from one place to another
- 14. when Earth's plates slide past each other
- 15. the study of the earth
Down
- 1. a variable in a science experiment that changes in response to the independent variable
- 2. the wearing or breaking down of rock by wind, water, or ice
- 3. when Earth's plates move toward each other
- 7. when wind, ice, or water puts down the sediment it is carrying
- 10. allows light to pass through
- 13. blocks light and creates a shadow