Stars and Planets

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Across
  1. 4. The smallest star is a _________ star
  2. 6. Stars burn _______ for billions of years
  3. 8. Stars are not really _______
  4. 9. Black holes are actually very __________
  5. 10. Super giants are ______ mass stars
  6. 12. The fusion of very heavy ________ happens in super giant stars
  7. 15. The sun is a _____ mass star
  8. 16. Eventually stars run ______ of fuel and "die"
Down
  1. 1. A massive explosion that happens when a super giant star runs out of fuel
  2. 2. The first and most abundant element
  3. 3. A star "nursery"; where stars are made
  4. 5. Planetary nebula has ________ to do with how planets form
  5. 6. Spinning + Gravity = _______
  6. 7. When a red giant runs out of fuel, the dense core that is left becomes a ______
  7. 11. An interstellar cloud made of gas and dust
  8. 13. Nebulas form _____ types of stars
  9. 14. ______ Nebula is formed when a red giant star runs out of fuel and collapses