Across
- 3. The result of the Earth's position from the Sun
- 4. A theory that Earth was the center of the Solar System
- 7. A group of planets orbiting a star
- 11. The poles of a celestial body
- 14. An area where there is a magnetic force
- 15. A device that helps people see planet from the naked eye
- 16. Something that turns
- 20. A small body made of ice, rock, and dust
- 21. A vehicle that can travel in space
- 22. A theory of how the Universe was created
- 24. Anything that has mass and takes up space
- 25. An imaginary line on which the planet rotates on
Down
- 1. Caused by two celestial bodies passing by
- 2. The forth state of matter
- 5. A substance that doesn't conduct electricity very well
- 6. A celestial body's orbit around their star
- 8. A theory that the Sun was the center of the Solar System
- 9. A celestial body that orbits the Sun, but isn't classified as a planet
- 10. A substance that cannot be broken down any further
- 12. Caused by the Moon's gravitational pull
- 13. A celestial body that orbits a star
- 17. A force that holds something in place
- 18. A space rock that burns up in our atmosphere
- 19. A space rock the orbits the sun
- 23. The gases surrounding a planet