Earth and Sun

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Across
  1. 1. The time between sunrise and sunset on Earth.
  2. 2. The mixture of gases surrounding Earth.
  3. 4. The force of attraction between masses.
  4. 7. A group of starts in a pattern given a name by people.
  5. 9. An instrument that makes distant objects appear closer and larger.
  6. 10. A mass of ice, rock, and gas orbiting the Sun.
  7. 12. A region in space without light that has a strong gravitational pull.
  8. 14. The furthest planet from the Sun.
  9. 17. The planet with the most confirmed moons in our solar system.
  10. 18. A huge sphere of hydrogen and helium gas that radiates heat and light.
Down
  1. 1. A small, round object that orbits the Sun and does not orbit a planet.
  2. 3. The process by which liquid water changes into water vapor.
  3. 5. Orbits around the Earth.
  4. 6. A dwarf planet that used to be called a planet.
  5. 8. The layer of gases surrounding Earth in layers.
  6. 11. A large, round object orbiting a star.
  7. 13. The planet closest to the Sun.
  8. 15. The time between sunset and sunrise on Earth.
  9. 16. The planet with red soil.
  10. 18. The star at the center of the solar system.