Astronomy by Daniela and Analeah

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Across
  1. 5. a cloud of gas and dust that can be used to form new stars like a nebula
  2. 10. When all fusion ends, a star collapses with a huge explosion due to gravity
  3. 11. How often waves happen
  4. 13. makes up 90% of space
  5. 14. A cloud of gas and dust where stars are formed.
  6. 15. star will collapse, and the explosion of energy will cause the planet to swell
Down
  1. 1. Core of an old dying star
  2. 2. idea of the universe expanding
  3. 3. it's our galaxy
  4. 4. Energy moves from one place to another without transferring matter
  5. 6. it's the distance between points that can be used for waves
  6. 7. Cluster of stars
  7. 8. where stars spend 90% of their lives
  8. 9. Most massive stars collapse and form.
  9. 12. It's when an object in space moves away from us and light waves are stretched into a lower frequency