stars

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Across
  1. 5. A cloud of hydrogen gas
  2. 6. A white dwarf is the ____ step of our sun
  3. 7. A exploding star
  4. 8. A luminous globe of gas and light
Down
  1. 1. A red _____ is a star that is starting to burn out
  2. 2. Neutron stars are composed of ________
  3. 3. Black _____ are formed by massive stars at the end of their life time
  4. 4. A stars mass is based on ______
  5. 9. ___ dwarfs are very small faint stars that are one tenth mass of our sun