Chain Crosswords Medium Chain Nature Hard — Set 22

Medium 13×13 Set 22
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Across
  1. 1. The central part of a cell that controls its activity
  2. 5. The upward force that makes things float in water
  3. 7. How hot or cold something is
Down
  1. 1. A substance that living things need for energy and growth
  2. 2. A community of living things and their environment working together
  3. 3. A tool that makes far-away things look closer
  4. 4. The power that makes things move or change
  5. 6. A form of energy that allows us to see