Universe and Its Stars Vocab

Edit Answers
1234567891011121314151617
Across
  1. 3. the pattern that we observe with the moon every month
  2. 7. the universe is primarily made up of this element with the atomic symbol He
  3. 8. the brightness of a star
  4. 9. the force that attracts a body toward the center of the Earth or any physical body with mass
  5. 10. the universe is primarily made up of this element with the atomic symbol H
  6. 11. a massive explosion that created the matter of the universe
  7. 16. process where two or more atomic nuclei combine
  8. 17. encompasses everything: all of space, time, matter, and energy
Down
  1. 1. pattern formed by stars in the night sky
  2. 2. star systems consisting of a sun and everything that orbits it, including planets, moons, etc.
  3. 4. a massive system containing billions of stars
  4. 5. galaxy that we live in
  5. 6. the explosion of a star which creates the elements heavier than iron
  6. 7. current model which has the sun at the center of the solar system with the other planets orbiting it
  7. 12. device that we can use to look at outer space
  8. 13. something that repeats or happens in a regular way
  9. 14. a group of parts that work together
  10. 15. the sun has a huge amount of __________