Across
- 3. a moon outside our solar system
- 6. the star that is the main sour of light at the center of our solar system
- 7. the relative size of things
- 10. to shine on an object and make it visible
- 12. eclipse when the moon is completely dark
- 13. moon a moon phase in which the moon is not visible from earth
- 14. a planet outside our solar system
- 17. the border between light and dark on the moon
- 18. moon a moon phase that looks like a half circle from earth
Down
- 1. moon a moon that look like more then half a circle
- 2. a rocky sphere that travels around a plant
- 4. moon a moon phase that looks like a full circle from earth
- 5. an object or diagram or computer program that helps us under something by making it simpler or easier
- 6. system the sun the planet that orbit the other objects that orbit the sun
- 8. moon a moon phase that looks like less half a circle from earth
- 9. something we observe to be similar over and over again
- 11. phase the shape of the illuminated part of the moon as it appears from earth
- 15. the nearly circular path a smaller object travel around a large object
- 16. the amount of time it takes for our plant to make one full orbit around a star or stars