The Big Bang

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Across
  1. 5. A unit of measuring temperature.
  2. 6. From hot to cold.
  3. 8. From a big wavelength to a small wavelength.
  4. 11. The required density for matter in order to make it so the universe will no longer expand nor shrink.
  5. 14. Of the same or a similar kind or nature.
Down
  1. 1. Electromagnetic radiation filling the universe that is a residual effect of the big bang.
  2. 2. The universe expands so much that temperature drops.
  3. 3. The four needed forces of the universe.
  4. 4. The telescope that is in space.
  5. 7. When the universe reverts to its original state.
  6. 9. Quantity of mass per unit volume.
  7. 10. A VERY fast speed.
  8. 11. The science of the origin of the universe.
  9. 12. The building blocks of everything.
  10. 13. Seconds to years.