Across
- 3. the dark part of a shadow
- 4. the partial or total of one object in space by another
- 7. one of the different apparent shapes of the moon as seen from earth
- 9. they borrowed the Egyptian calendar
- 11. either of the two days of the year on which neither hemisphere
- 12. first calendar that was made
- 13. a measure of the force of gravity on an object
- 14. a calendar we still use today
Down
- 1. pull all objects towards each other
- 2. amount of matter in a object
- 5. either of the days of the year on which the sun reaches its greatest
- 6. a system that organizing times
- 7. the part of shadow surrounding the darkest
- 8. the tendency of an object to resist a change in motion
- 10. an object as it is revolves around another objects in space