Inner planets

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Across
  1. 3. Means similar to Earth
  2. 6. A thick layer of gases that surround a planet
  3. 9. Farther from the sun
  4. 10. A large star found in the center of our solar system
Down
  1. 1. A celestial object in space that orbits the star
  2. 2. Closer to the sun
  3. 4. The third planet from the sun where we live
  4. 5. When a celestial object orbit a planet or the sun
  5. 7. A gas that is essential for survival and makes up 21% of Earth's atmosphere
  6. 8. A celestial body that orbit a planet