Chain Crosswords Medium Chain Science Hard — Set 3

Hard 15×15 Set 3
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12
Across
  1. 4. A word related to science
  2. 8. Wearing away of land by water or wind
  3. 10. Center of an atom or cell
  4. 11. Fourth state of matter
  5. 12. Naturally occurring inorganic solid
Down
  1. 1. A word related to science
  2. 2. Mixture producing intense heat
  3. 3. Pure substance on periodic table
  4. 5. Smallest discrete unit of energy
  5. 6. Preserved remains of ancient life
  6. 7. A word related to science
  7. 9. Slow-moving river of ice