Across
- 3. the central, darker part of a shadow where light is totally blocked.
- 6. phases of the Moon during which less of the Moon's near side is lit each night.
- 8. the path an object follows as it moves around another object.
- 9. phases of the Moon during which more of the Moon's near side is lit each night.
- 12. the orbit of one object around another object.
Down
- 1. when Earth's rotation axis is tilted directly toward or away from the Sun.
- 2. when Earth's rotation axis is tilted neither toward nor away from the Sun.
- 4. the spin of an object around its axis.
- 5. the lit part of the Moon or a planet that can be seen from Earth.
- 7. an occurrence during which the Moon's shadow appears on Earth's surface.
- 10. the lighter part of a shadow where light is partially blocked.
- 11. the line on which an object rotates.