Chain Crosswords Medium Chain Nature Hard — Set 8

Hard 15×15 Set 8
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9
Across
  1. 3. A word related to science
  2. 5. Group of similar living organisms
  3. 8. Device for controlled nuclear reactions
  4. 9. Wearing away of land by water or wind
Down
  1. 1. A word related to science
  2. 2. A word related to science
  3. 3. Large molecule essential for life
  4. 4. Naturally occurring inorganic solid
  5. 6. Positively charged particle
  6. 7. One body blocking another in space