Across
- 2. the decrease of the sun on the moon
- 5. the solid part of the earth's layers
- 7. a sphere of gas enveloping the earth
- 10. crest to trough
- 12. most of the water on earth is __________.
- 14. partial shadow
- 16. happens during a new and full moon
- 18. the center of a hurricane
- 19. what earth spins on
- 20. the highest part of a wave
Down
- 1. crest to crest or trough to trough
- 3. has a greater effect of the tides on earth
- 4. this eclipse happens more often
- 6. the lowest part of a wave
- 8. the direction currents move in the northern hemisphere
- 9. the liquid part of the earth's layers
- 11. the increase of the sun on the moon
- 13. a disturbance which moves through or over the surface of a fluid
- 15. full shadow
- 17. happens during a first and third quarter moon