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How systems depend on CARBON and CHEMICAL ENERGY

Systems and Scale. How systems depend on CARBON and CHEMICAL ENERGY. Why do some t hings b urn and other things do not burn? Why does ethanol behave more like wood than water?. Driving question. Why does ethanol behave more like wood than water?. ZOOMING INTO FUELS.

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How systems depend on CARBON and CHEMICAL ENERGY

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  1. Systems and Scale How systems depend on CARBON and CHEMICAL ENERGY

  2. Why do some things burn and other things do not burn?Why does ethanol behave more like wood than water? Driving question

  3. Why does ethanol behave more like wood than water? ZOOMING INTO FUELS

  4. What we see… Macroscopic Scale ETHANOL WATER WOOD

  5. Zooming out… Large Scales WATER (ocean and cloud) ETHANOL (petroleum) WOOD (Forest)

  6. Zooming in… Microscopic Scale WATER (a single droplet) ETHANOL (a single droplet) WOOD CELLS

  7. Zooming in… Atomic-molecular Scale Water molecule (H2O) Ethanol molecule (C2H6O) Cellulose (C6H10O5)m ( wood is a mixture of many large and small molecules, including cellulose)

  8. What ATOMS are found in these materials? Water molecule (H2O) Ethanol molecule (C2H6O) Cellulose (C6H10O5)M

  9. What ATOMS are found in these materials? ATOMS FOUND IN EACH MOLECULE: Water: Hydrogen, Oxygen Ethanol: Hydrogen, Oxygen, Carbon Wood: Hydrogen, Oxygen, Carbon Water molecule (H2O) Ethanol molecule (C2H6O) Cellulose (C6H10O5)M

  10. What BONDS are found in these materials? Water molecule (H2O) Ethanol molecule (C2H6O) Cellulose (C6H10O5)M

  11. What BONDS are found in these materials? BONDS FOUND IN EACH MOLECULE: Water: H-O Ethanol: H-O, C-O, C-H, C-C Wood: H-O, C-O, C-H, C-C Water molecule (H2O) Ethanol molecule (C2H6O) Cellulose (C6H10O5)M

  12. What BONDS are found in these materials? Chemical Energy Energy found in the bonds of molecules. C-C and C-H bonds means molecules have usable chemical energy. So which materials have chemical energy? Water molecule (H2O) Ethanol molecule (C2H6O) Cellulose (C6H10O5)M

  13. Materials That Do NOT Burn Materials That Burn WATER PROPANE SALT CARBON DIOXIDE BUTANE WOOD OXYGEN NITROGEN ETHANOL

  14. What makes these burn? How are these different? WATER PROPANE SALT CARBON DIOXIDE BUTANE WOOD OXYGEN NITROGEN ETHANOL

  15. What makes something organic?ORGANIC AND INORGANIC MATERIALS

  16. Water, Ethanol, and Wood Ethanol is chemically similar wood ETHANOL WATER WOOD

  17. MATTER AND ENERGY • Every molecule has both ATOMS and BONDS ATOMS TELL YOU ABOUT MATTER BONDS TELL YOU ABOUT ENERGY

  18. ORGANIC INORGANIC --means the molecule is CARBON-BASED --and the molecule has C-C and C-H bonds --means the molecule is not CARBON-BASED --and the molecule does not have C-C and C-H bonds

  19. What Makes Up Living Things? Average Human Average Apple Average Chicken Inorganic: Water, minerals; Organic: carbohydrates, fats, proteins

  20. BIOMASS • All the organic matter found in living and recently living organisms (this does not include water and minerals that are not incorporated into organic materials).

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