Chain Crosswords Medium Chain Nature Hard — Set 10

Hard 15×15 Set 10
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Across
  1. 1. Positively charged particle
  2. 5. Mixture producing intense heat
  3. 8. A word related to science
  4. 9. Group of similar living organisms
  5. 10. Naturally occurring inorganic solid
Down
  1. 2. Device for controlled nuclear reactions
  2. 3. Biological catalyst for reactions
  3. 4. One body blocking another in space
  4. 6. A word related to science
  5. 7. Slow-moving river of ice