Unit 4 science stuff By: Madeleine Hansrote

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Across
  1. 4. rigid outer part of the earth
  2. 5. Green pigment inside a plant
  3. 7. breathing
  4. 8. physical substance
  5. 10. breaks down dead stuff
  6. 13. cells break down the sugar molecules to produce energy without the presence of oxygen
  7. 20. the process where a plant makes food
  8. 21. spherical concentric regions of matter that make up the earth
  9. 22. chemical element of atomic number 6
  10. 24. environment viewed in terms of its ability to absorb carbon dioxide
Down
  1. 1. anything that releases more carbon into the atmosphere than it absorbs
  2. 2. process of burning something
  3. 3. chemical reactions that break down glucose to produce ATP
  4. 6. all the waters on the earth's surface
  5. 9. plastid that contains the Chlorophyll
  6. 11. non-renewable energy source
  7. 12. envelope of gases surrounding the earth
  8. 14. power derived from the utilization of physical or chemical resources
  9. 15. at the bottom of the food pyramid
  10. 16. membrane-bound cell organelles
  11. 17. non-living
  12. 18. everywhere life exists
  13. 19. living
  14. 23. eats the producers