Fossil fuels

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Fossil fuels

  1. 2. Objectives <ul><li>Identify the three types of fossil fuels </li></ul><ul><li>Relate the three types of fossil fuels to where they are used everyday </li></ul><ul><li>Discuss the origin and characteristics of the three main types of fossil fuels </li></ul><ul><li>Discuss ideas for the conservation of fossil fuels </li></ul>
  2. 3. What are the three types of fossil fuels? <ul><li>Petroleum </li></ul><ul><li>Natural Gas </li></ul><ul><li>Coal </li></ul>
  3. 4. How were fossil fuels formed? <ul><li>Dead plants and animals </li></ul><ul><ul><li>Covered with layers of mud, mud, volcanic ash, and other things collected on the earth’s surface </li></ul></ul><ul><ul><li>Happens over many years through great pressure, heat, and bacteria </li></ul></ul>
  4. 5. Petroleum <ul><li>Petroleum (hydrocarbons) must be separated to make use of their energy </li></ul><ul><li>Separated by a process called fractional distillation </li></ul><ul><li>Certain petroleum substances boil at specific temperatures and can be removed at those temperatures </li></ul><ul><ul><li>Gasoline: between 40-180 C, asphalt: between 405-515 C </li></ul></ul>
  5. 6. Natural Gas <ul><li>Usually found in the same places as petroleum under the surface of the earth </li></ul><ul><li>Made mostly of methane (CH 4 ) </li></ul><ul><li>Used for things like gas stoves or gas heating for homes </li></ul>
  6. 7. Coal <ul><li>Solid fossil fuel made from the remains of plants </li></ul><ul><li>Found by mines, sometimes at the earth’s surface, but usually about 100 meters underground </li></ul><ul><ul><li>Lackawanna Coal Mine near Scranton </li></ul></ul><ul><li>Must be cleaned and purified before using it as a fuel </li></ul>
  7. 8. Dangers <ul><li>Petroleum: when it is burned, it produces CO </li></ul><ul><ul><li>Dangerous, odorless gas </li></ul></ul><ul><li>Natural Gas: when it is burned, it produces CO 2 </li></ul><ul><ul><li>One of the key components that warms the earth’s atmosphere </li></ul></ul><ul><li>Coal: if not cleaned properly, can cause acid rain </li></ul><ul><ul><li>Can contaminate water sources and be dangerous if you have too much of it </li></ul></ul>
  8. 9. Conservation <ul><li>All fossil fuels are non-renewable resources </li></ul><ul><ul><li>They cannot be replaced after they are used </li></ul></ul><ul><li>It is possible that the United States will run out of petroleum within the 100 years </li></ul>
  9. 10. What are some things that we can do to save our fossil fuels?

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