Chain Crosswords Long Nature Hard — Set 2

Hard 15×15 Set 2
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11
Across
  1. 3. Center of an atom or cell
  2. 5. Slow-moving river of ice
  3. 6. A word related to science
  4. 9. Naturally occurring inorganic solid
  5. 10. Preserved remains of ancient life
  6. 11. Wearing away of land by water or wind
Down
  1. 1. Solid with ordered atomic structure
  2. 2. A word related to science
  3. 4. One body blocking another in space
  4. 7. Diffusion of water through a membrane
  5. 8. Substance providing immunity