Across
- 4. imaginary line running through the center of the earth
- 5. how long it takes earth to orbit around the sun
- 6. earth's shape
- 7. how long it takes the earth to revolve around the sun
- 9. number of planets in the solar system
- 11. made the solar system
- 13. the center of the solar system
- 14. scientist that studies sun, moon, stars, planets
- 17. first planet from the sun
Down
- 1. how the earth sits on its axis
- 2. last planet from the sun
- 3. caused by the earth's tilt and earth's orbit
- 5. the earth's path around the sun
- 8. when the earth moves around the sun
- 10. shows land and water on the earth
- 12. time it takes the earth to rotate one time
- 15. what number planet from the sun earth is
- 16. gives the earth sunrise and sunset, daytime and nighttime