Interactions and Ecosystems - Topic 4 & 5 Review

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Across
  1. 3. Dead animals and plants form oil and coal
  2. 6. Amount of pollutant in each organism increases as you go up the food chain
  3. 7. Burning fossil fuels
  4. 8. Creates their own food energy using sunlight
  5. 9. Plants absorb carbon dioxide to create food energy
  6. 12. The role or job of an organism in an ecosystem
  7. 14. Gases in the atmosphere trap heat from the sun
  8. 16. Organisms exhale carbon dioxide
  9. 18. The number of organisms at each trophic level of a food chain (hint: its a shape)
  10. 21. Living things and things that used to be alive
  11. 22. Rain, snow, and hail falling from the clouds
Down
  1. 1. More than one food chain connected together
  2. 2. Only eats plants
  3. 4. Eats plants and meat
  4. 5. The change from gas to liquid
  5. 10. Tells you how many steps away the organism is from the start of the food chain
  6. 11. Cannot create their own food energy so they must take it from other organisms
  7. 13. Certain pollutants in the air mix with the clouds making the water acidic
  8. 15. Only eats meat
  9. 17. Increase in pollutants in the body of one organism in its life
  10. 19. Liquid water heating up and turning into gas
  11. 20. Non-living things and things that were never alive