Science summer term crossword by Max H

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Across
  1. 3. the man who created theory of evolution
  2. 5. a circuit with only one loop
  3. 6. positive particles
  4. 7. a product of Photosynthesis
  5. 9. chain what animal eats what in an ecosystem
Down
  1. 1. how plants breathe
  2. 2. a circuit that shares all components in multiple
  3. 4. neutral particles
  4. 6. bear predator with white fur
  5. 8. negative particles