Chain Crosswords Long Nature Hard — Set 6

Hard 15×15 Set 6
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2
3
4
5
6
7
8
9
Across
  1. 3. Fourth state of matter
  2. 6. A word related to science
  3. 8. Positively charged particle
  4. 9. Device for controlled nuclear reactions
Down
  1. 1. Diffusion of water through a membrane
  2. 2. Mixture producing intense heat
  3. 3. Large molecule essential for life
  4. 4. A word related to science
  5. 5. A word related to science
  6. 7. Force attracting objects to Earth