Across
- 3. is the second smallest planet and people are trying to make it livable
- 5. Planets, Earth-like planets made up of rocks or metals with a hard surface
- 6. planets, are Mercury, Venus, Earth and Mars in the order from the sun
- 7. is the hottest planet
- 9. the largest planet in solar system and is made up of mostly gas
- 11. planets, the four planets on the other side of the asteroid belt(Jupiter, Saturn, Uranus, Neptune)
- 12. giants, are planets that are composed mainly of hydrogen and helium
- 14. is the smallest planet in the solar system
- 15. are chunks of rock and ice that never clumped together to form a planet
Down
- 1. is almost at a 90 degree axis
- 2. belt, is a torus-shaped region in the Solar System, located roughly between the orbits of the planets Jupiter and Mars
- 4. the only planet in the solar system that has life on it
- 8. is named after the greek god Poseidon
- 10. are mixtures of rock, ice and dust
- 13. is the second biggest planet behind Jupiter