Big Bang

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Across
  1. 3. bang Theory on how the universe began
  2. 6. The big event that started the universe (not the big bang)
  3. 7. the leftover heat from the big bang
  4. 9. the smallest unit of matter
  5. 10. The force that pulls objects together
Down
  1. 1. the beginning of everything
  2. 2. What the universe has been doing since it has begun
  3. 4. a huge system of stars gas and dust
  4. 5. The rapid expansion right after the universe began
  5. 8. Tiny particles that make up atoms