Across
- 3. An object diagram our computer program that helps us understand by making it simpler
- 5. A moon phase that look like a full more then a half moon
- 6. Something we observe over and over again
- 7. A planet outside are solar system
- 10. A moon outside our solar system
- 12. To shine light on an object
- 15. A moon phase that looks like a full circle from earth
- 17. moon A phase that looks like less then half a circle from earth
- 18. The border between light and dark side of moon
Down
- 1. The sun the planets that orbit the earth
- 2. The amount of time it takes for a planet to complete one orbit around a star or stars
- 4. The shape of the illuminated part of the moon as it appears from earth
- 8. The nearly path smaller object like the moon travels around the earth
- 9. When moon is completely dark
- 11. A moon phase in which the moon is not as visible from earth
- 13. A rocky sphere that travels
- 14. The stars that is main source of light at center of of are solar system
- 16. The relative size of things
