Across
- 3. small depressions left after glaciers
- 6. big stream
- 10. the layer of rock under the soil
- 11. sediment deposited at a rivers end
- 12. the grinding of 2 rocks
- 13. Jacobs last kahoot name
- 15. gases surrounding the earth
- 18. units divided by eras
- 19. small river
- 20. remains of a living organism
Down
- 1. a copy of an organism's shape
- 2. animals without backbones
- 4. bend in a river
- 5. rubbing 2 things together
- 7. broken into periods
- 8. sediment deposited by glaciers
- 9. big moving ice
- 11. a decomposing organism
- 14. mountains, valleys, & plains
- 16. ability to do work
- 17. dark colored soil