Vocab Word Wall Crossword Puzzle

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Across
  1. 1. a big ball of hot gases
  2. 2. a person that is exploring space
  3. 3. a continuous area or expanse which is free
  4. 4. planets that are not sustainable to a human body
  5. 6. agency responsible for the space program
  6. 8. a celestial body resembling a small planet
  7. 11. conclusion reached on the basis of evidence and reasoning
  8. 12. when moon moves into the earths shadow
  9. 13. the biggest star in the earths orbit
  10. 17. the rate at which an entity such as a star completes cycles of rotations
  11. 19. a big airplane that goes into orbit to do space exploration
  12. 21. a big rock in space heading towards the earth
  13. 22. a moon, planet, or machine that orbits a planet or a star
  14. 23. a rock falls from space to earth
  15. 25. the shadow cast by the earth or moon over an area experiencing a partial eclipse
  16. 26. when light encounter a discontinuity in the medium through which it is being transmitted
  17. 27. the universal force of attraction acting between all matter
  18. 28. a ring that all our planets follow
  19. 29. cosmetic snow balls of frozen gases, rock, and dust that orbit the sun
Down
  1. 1. investigation out of our orbit
  2. 3. an eclipse in which the sun is obscured by the moon
  3. 5. the angle between the planet's rotational axis and its orbital axis
  4. 7. is the earths only satellite
  5. 9. the moon before getting smaller
  6. 10. piece of technology that is in space and orbits around earth in 90 minutes
  7. 14. the degree of compactness of a substance
  8. 15. phase that is starting the moon phase
  9. 16. a phase of the moon almost finishing its cycle
  10. 18. a building or place given over to or equipped for observation of natural phenomena
  11. 20. a big camera that can see all the way out of our orbit
  12. 24. before a full moon and after a new moon