Chain Crosswords Short Nature Medium — Set 2

Medium 13×13 Set 2
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2
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8
Across
  1. 2. Simple machine for lifting
  2. 4. A word related to science
  3. 5. Relating to the sun
  4. 7. A word related to science
  5. 8. Fiber that transmits signals
Down
  1. 1. Biological classification rank
  2. 3. Tiny reproductive unit of fungi
  3. 6. Compound of oxygen and another element