Science

12345678910111213141516171819202122
Across
  1. 3. the organism that is at the top of the food chain
  2. 4. a model showing how many organismis are at each food level
  3. 7. the water in the earths crust
  4. 8. a green liquid found in producers while traps energy from the sun
  5. 9. the increase of tempurature in the earths crust
  6. 11. the slow change in the biological community
  7. 16. materials that cause pollution
  8. 17. the process when water travelsthrough the roots of a plant and evaporates from the leaves
  9. 18. the accumulation of pollutants in organisms through levels in the food chain
  10. 19. a model that shows how food energy passes from one organism to another
  11. 20. the process when little tiny drops of water get formed into rain drops
  12. 22. the movement of water through a community
Down
  1. 1. any biotic and abiotic factors that control the numbers of induviduals
  2. 2. a process by witch an organism obtains energy by breaking down food like sugar
  3. 4. the process when a plant takes energy from the sun and makes food
  4. 5. water that travels into lakes and ponds
  5. 6. a web interconected food chains
  6. 10. all the harmfull materials put into the environment
  7. 12. the maximum number of induviduals in an environment
  8. 13. the process when water changes from being a gas into being a liquid
  9. 14. the process when liquid changes to gas vapour
  10. 15. a model showing how carbon is used in its ecosystem
  11. 21. the transfer of energy from the sun that passes to other organism