SPACE

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Across
  1. 2. THE UNIVERSE EXPANDED FROM A TINY PARTICLE TO THE SIZE OF A GALAXY
  2. 5. THEY ARE RICH CARBOM BASED CHEMICALS
Down
  1. 1. LIGHT AND HEAT ARE EXAMPLES OF IT
  2. 3. THERE ARE BILLIONS IN THE UNIVERSE
  3. 4. IT IS EXPANDING OUTWARD