Across
- 2. The apparent change in shape of the moon as it goes through its cycle.
- 5. A term used to describe a model where the Earth is at the center of the universe.
- 6. The time it takes for a planet to complete one full orbit around the sun.
- 8. The spinning of a planet on its axis, which causes day and night.
- 9. when the shadow of one celestial object falls on another celestial object.
Down
- 1. The tilt of the Earth’s axis causes different times of the year to have varying weather patterns.
- 3. A model of the solar system where the sun is at the center, and the planets orbit around it.
- 4. an imaginary line through the center of an object around which it rotates.
- 7. The path an object takes as it moves around another object in space.