SPACE

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Across
  1. 4. The path of a planet around a star
  2. 6. This star gives us light
  3. 7. The nationality of the first man in space
  4. 8. The first animal in space was one of these
  5. 12. Vehicle to transport people into space
  6. 15. Our planet
  7. 16. The number of planets that have been discovered in our Solar System
  8. 18. The red planet
  9. 19. Neil... The first man to walk on the moon
  10. 21. No longer a planet
Down
  1. 1. Largest planet in the Solar System
  2. 2. The group of planets and star that Earth is part of
  3. 3. A natural satellite
  4. 5. The hottest planet in the Solar System
  5. 9. Some planets are made of rock and some are made of ...
  6. 10. Planet closest to the Sun
  7. 11. One of the gases that is found in the Sun
  8. 13. This is found in between Mars and Jupiter
  9. 14. The time it takes for a planet to complete an orbit
  10. 17. This was left on the moon
  11. 20. the force that makes any two objects that have mass move towards each other