3rd Year Science Test

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Across
  1. 3. all the plants and animals in an area interacting with each other and their environment
  2. 6. a material through which charge can flow
  3. 7. the ability to do work
  4. 9. the number of protons in an atom of that element (2 words)
  5. 12. the study of the relationships between plants, animals and their environment
  6. 13. animals that get their food by eating plants or other animals
  7. 15. an animal that eats both plants and animals
  8. 17. atoms of the same element which have a different number of
  9. 18. takes place when 2 or more organisms require something that is in short supply
  10. 19. a material through which charge cannot flow
Down
  1. 1. the area where a plant or animal lives
  2. 2. plants that make their own food
  3. 4. the amount of protons and neutrons in an atom of that element (2 words)
  4. 5. an animal that eats plants only
  5. 8. consists of 2 or more elements chemically combined
  6. 10. the rate at which work is done
  7. 11. the corrosion of iron
  8. 14. organisms that feed on dead plants and animals
  9. 16. an animal that eats other animals only