Stars

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Across
  1. 2. cold clouds of gas and dust known as the birth place of stars.
  2. 4. this dust will eventually make other stars and planets after a supergiant star explodes.
  3. 7. small stars live for more than 10 ____ years.
Down
  1. 1. the supernova will quickly fade, and all that is left is a ______.
  2. 3. elements such as oxygen, carbon, and iron make up a _____, and are scattered through space.
  3. 4. at the end of their short lives, the biggest stars blow themselves apart in a huge _____ explosion.
  4. 5. after puffing off its outer layers of gas, the star collapses to form a very dense white _____.
  5. 6. also known as the "red giant".