Across
- 7. the force that attracts a body toward the center of the earth
- 9. (in general use) weight.
- 11. how many days does it take the moon to orbit earth?
- 12. 1st and 3rd quarter
- 13. is The only habitable planet
- 15. break apart or becomes separated through faulting caused by plate tectonics.
- 18. the state of the tide when at its lowest level.
- 19. new and full moon
- 20. of, determined by, or resembling the moon
- 21. relating to the structure of the earth's crust and the large-scale processes which take place within it.
Down
- 1. the alternate rising and falling of the sea, usually twice in each lunar day
- 2. Which planet is the closest to the sun?
- 3. Consistent weather
- 4. something that repeated
- 5. the state of the tide when at its highest level.
- 6. revolves around Earth
- 8. It causes seasons
- 10. is the brightest star in our solar system
- 14. It causes day and night
- 16. Are on the periodic table
- 17. How many planets are in our Solar System?