Across
- 5. the preserved remains or traces of living things
- 7. earth material deposited by erosion
- 10. the force that opposes the motion of one surface as it moves across another surface
- 13. the mixture of gases that surrounds the earth
- 15. the process by which elements move weathered rock and soil
- 16. the solid layer of rock beneath the soil
- 17. a land form made of sediment
- 19. a larger stream
- 20. a tiny groove in soil made by flowing water
Down
- 1. a copy of an organism
- 2. the amount of sediment that a river or stream carries
- 3. a large mass of ice and snow on land
- 4. a sphere that represents earth's surface
- 6. a land form made up of flat or gently rolling land with low relief
- 8. a stream that flows into a larger stream
- 9. wave-washed sediment along a coast
- 11. an animal with a backbone
- 12. mixture of humus,clay,and other minerals
- 14. the ability to work or cause change
- 18. the sediments deposited directly by a glacier