Across
- 1. The planets outside the asteroid belt
- 3. A space of asteroids between Mars and Jupiter
- 8. a planet that does not meet the attributes of the main planets in our solar system
- 10. The planets that are in between the sun and the asteroid belt
- 12. it is needed since the universe is huge
- 14. A celestial object that orbits a star
- 15. The force that causes things to drop to the ground
Down
- 2. Planets with compact rocky surfaces
- 4. Consists of the Sun and everything that orbits, or travels around the Sun
- 5. a mixture of gases that surround a planet
- 6. Nicolaus Copernicus made this change in 1543
- 7. The ancient greeks had this belief until the 16th century
- 9. a large planet mostly composed of helium and/or oxygen
- 11. the blocking of light of one celestial body to another
- 13. A regular, repeating path that one object in space takes around another one