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Depend on CARBON and CHEMICAL ENERGY from FOSSIL FUELS.

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Presentation on theme: "Depend on CARBON and CHEMICAL ENERGY from FOSSIL FUELS."— Presentation transcript:

1 depend on CARBON and CHEMICAL ENERGY from FOSSIL FUELS

2 What are fossil fuels? Driving question

3 coal oil gasoline natural gas Examples of fossil fuels

4 Is gasoline organic or inorganic?

5 What we see… Macroscopic Scale GASOLINE

6 Gasoline (C 8 H 18 ) Zooming in… Atomic-molecular Scale

7 What is gasoline most similar to in terms of atoms? Water molecule (H 2 O) Ethanol molecule (C 2 H 6 O) Cellulose (C 6 H 10 O 5 ) m Gasoline (C 8 H 18 ) Carbon dioxide (CO 2 )

8 What is gasoline most similar to in terms of bonds? Water molecule (H 2 O) Ethanol molecule (C 2 H 6 O) Cellulose (C 6 H 10 O 5 ) m Gasoline (C 8 H 18 ) Carbon dioxide (CO 2 )

9 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 Which group would gasoline fit into?

10 How did fossil fuels form?

11 Over millions of years… …coal and other fossil fuels are formed from plant materials

12 300 million years ago photosynthesis CO 2

13 300 million yrs ago photosynthesis today squished & heated CO 2 Buried Extracted from the ground Follow the carbon

14 How do humans use fossil fuels, and when did we begin using them? Driving question

15 Industrial revolution 1750 -1850– Changes in agriculture, manufacturing, mining, transportation and technology

16 300 million year old organic carbon Organic fossil fuels provide stored energy for human systems

17 300 million year old organic carbon Combustion of fossil fuel releases CO 2 This CO 2 is called carbon emissions

18 Carbon emissions (CO 2 released from burning fossil fuels) are also called greenhouse gases, because they amplify the greenhouse effect.

19 More CO 2 in the atmosphere traps more of the sun’s energy, heating the planet


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