What is pollution? Define pollution in your own words.

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​Group Discussion

There are four stages of getting petroleum or gasoline to our cars.

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How does petroleum get to us?

​Oil rigs pump petroleum out of the ground. The rigs can be on land or over the ocean.

​​Step 1

​Petroleum is a mixture of many compounds. At an oil refinery, the mixture is separated to form different fuels.

Step 2

​Gasoline is shipped in trucks to communities everywhere.

​​Step3

​Drivers fill up on gasoline at a gas station. An engine burns the fuel to release the energy.

​​Step 4

​There are benefits and drawbacks to all kinds of energy

​Accidents sometimes spill oil onto the ground or into the water. Major oil spills can take years to clean up.

​​Drawback

​Most petroleum reserves are in remote areas. Mining, shipping, and refining oil are all expensive processes.

​​Drawback

​Smog is a mixture of smoke and water in the air. The use of petroleum fuels is a major cause of smog in large cities.

​​Drawback

Gas stations serve every community. Drivers can easily get the gasoline that their cars need.

​​Benefit