Across
- 1. our solar systems star
- 4. To travel around another object
- 5. the layer around earth that keeps oxygen on earth
- 9. the study of space is called _______.
- 10. the point which earth rotates on
- 13. the force of earths mass pulling you down
- 14. The object orbiting earth
Down
- 1. 4 different parts stages of a year caused by Earth's rotation and orbit around the sun
- 2. the spinning of an object
- 3. the moon has indentations called _______s.
- 6. There is no _______ on the moon.
- 7. our earth is a _______
- 8. the moons darker spots are called _________s.
- 11. the center of a solar system has a ______.
- 12. what pulls you to the ground