Big Bang- Science

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Across
  1. 3. Radiation that travels in very direction through space left over from the Big Bang.
  2. 6. a sound that is low or high when far or close
  3. 8. How people believe our universe started
Down
  1. 1. how our universe was created
  2. 2. our favorite subject (sci)
  3. 4. where astronauts go
  4. 5. when galaxies move away from each-other
  5. 7. Elements present in every part of observable universe