Across
- 2. What caused the Solar System to form
- 3. Type of planets in our solar system that are mostly gas
- 6. First dwarf planet to be discovered
- 8. Force that holds the solar system together
- 9. Meteoroids that enter Earth's atmosphere are called_________
- 11. Dwarf planet located past pluto
- 14. Type of planet in our solar system that is solid
- 17. Large chunks of ice, gas and dust that orbit the sun
- 18. The amount of comets in the oort cloud
- 19. Asteroids are made of __________ ___ ________
Down
- 1. Number of planets in our solar system
- 4. Jupiter's moon that is larger than Mercury
- 5. amount of planets we can see with our unaided eyes
- 7. Confirmed number of moons that Jupiter has
- 9. When a meteor crashes into Earth it is called__________
- 10. Shows the boundary of our solar system
- 12. Most asteroids are _______________ shaped
- 13. third planet from the sun in our solar system
- 15. Makes 99.8% of the mass our our solar system
- 16. a natural satellite that orbits a planet