Across
- 2. This dwarf planet has 5 moons and is the largest dwarf planet.
- 6. This celestial object has a radius of 700,064 km and is made from hydrogen and Helium.
- 8. These things are composed of rock and metal and orbit the sun.
- 12. This type of planet doesn't dominate it's orbit and orbits the sun.
- 14. Most of these things have 2 tails, a gaseous tail and a dust tail.
- 16. This Planet is the largest terrestrial planet.
- 17. This can be pulled in by earths gravity and when they are, they burn up and create a shooting star.
- 19. This planet is the fastest travelling planet.
- 20. This Planet is not visible to the naked eye and is the farthest from the sun.
Down
- 1. This is 8 planets together with their moons orbiting the sun.
- 3. This celestial object is earth's only natural satellite.
- 4. A large grouping of stars, dust and gas held together by gravity.
- 5. This is the study of celestial objects using physics, math and chemistry.
- 7. This Planet has 13 rings and was the first planet found.
- 9. This planet is the larges/oldest planet in the solar system.
- 10. This Planet has an average density less than water.
- 11. This Planet has phases just like our moon!
- 13. This is a disc shaped region in the solar system and is located in between the orbit of Mars and Jupiter
- 15. These mainly occur when clouds of particles left behind by comets enter the atmosphere of a planet.
- 17. This Planet has the largest volcano in our solar system.
- 18. This is the name of many stars that are grouped together by a gravitational bond.