Across
- 2. a day when Earth's rotation axis is the most toward or away from the Sun
- 4. spinning motion
- 8. the line on which an object rotates
- 9. occurs when the Moon moves into Earth's shadow
- 11. the central, darker part of a shadow where light is totally blocked
- 12. the daily rise and fall of sea level
- 13. phase less of the Moon's near side is lit each night
Down
- 1. large, dark, flat areas on the Moon
- 3. when the Moon's shadow appears on Earth's surface
- 4. motion of one object around another object
- 5. the path an object follows as it moves around another object
- 6. the lighter part of a shadow where light is partially blocked
- 7. portion of the Moon or a planet reflecting light as seen from Earth
- 10. a day when Earth's rotation axis is leaning along Earth's orbit
- 13. more of the Moon's near side is lit each night