Across
- 1. study of space and celestial objects
- 4. oval shaped path of a planet
- 5. the force that attracts objects toward each other
- 7. point where a planet is closer to the sun
- 8. the path a planet follows around the sun
Down
- 1. point where a planet is farthest from the sun
- 2. amount of matter in an object
- 3. one complete orbit around the sun
- 6. speed and direction of an object motion