Space Review Crossword

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Across
  1. 3. An object that travels around a planet or a dwarf planet
  2. 4. The name of the first gas planet after the asteroid belt
  3. 8. The process through which the Sun generates heat and light
  4. 11. Gases and charged particles expelled above an active sunspot
  5. 12. A star begins as a __________
  6. 14. Another name for a shooting star
  7. 15. The planet between Venus and Mars
  8. 16. Piece of rock or metal in the solar system smaller than an asteroid
  9. 18. What a small to medium size star will become when it runs out of fuel
  10. 19. The Northen Hemisphere is point _______ from the Sun during the winter
Down
  1. 1. Large chunks of ice, dust and rock that orbit the sun
  2. 2. What a star becomes after it is a Red Giant
  3. 5. The unit used to measure distances beyond our Solar System
  4. 6. ___________ can cause astronauts to experience bone loss, stroke symptoms and changes in blood cell shape
  5. 7. that the Universe began in an incredibly hot, dense expansion about 13.7 billion years ago
  6. 9. What separates the inner and outer solar system
  7. 10. A big star that explodes might form a ______________
  8. 11. The term used to describe the longest or shortest days of the year
  9. 13. The name of our Galaxy
  10. 17. Astronauts in space lose about ____ percent of their bone mass each month they are in space