Crossword

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