Across
- 3. travels in a straight line
- 5. forms of energy
- 6. the Earth's axis is positioned like this resulting in seasons
- 7. a force that works against motion
- 8. to group things based on their similarities or physical properties
- 11. the amount of matter packed into an object
- 13. the physical space an object takes up
- 14. process where particles of sediment are joined together into one mass
- 15. can't be easily separated
- 17. bouncing back of light
- 19. gas changing to liquid
Down
- 1. dropping off of sediments
- 2. the general weather of an area over a long period of time
- 4. bending of light
- 9. a complete path of conductors that an electric current can flow through
- 10. the energy of movement
- 12. movement of sediments
- 14. a deep valley with steep sides
- 16. breaking down of rock into sediments
- 18. formed by dead organisms or plants