Do Now

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Do Now

1. Based on your knowledge, what is the difference
   between a renewable and a non-renewable resource.
   Give an example of each.
2. True or False. A renewable resource cannot become
   non-renewable. There is always a constant supply.

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Renewable Resources

• Renewable resources are those that can be
  replenished through biogeochemical and physical
  cycles.
• By contrast, non-renewable resources do not
  replenish themselves, or in the case of fossil
  fuels do so only at a very slow rate. Example
  oil, coal, natural gas.
• Perpetual resources are not affected by human use
  of them. Examples are sunlight and wind.

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Renewable Resources

• There are both organic (living) and inorganic
  (nonliving) examples of renewable resources.
• Example Organic renewable resources include
  plant and animal species.
• Example Inorganic renewable resources include
  water and air.

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Renewable resources can also become lost
through pollution. Though water can renew itself,
if it is polluted, it is no longer useful for
humans.
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Nonrenewable Resources

• A non-renewable resource is a natural resource
  that is present in limited supplies and depleted
  by use.
• A limited resource that we are using faster than
  we can replenish it.
• What are some things that humans use that are
  running out?

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Perpetual Resources

• Perpetual resources are not affected by human use
  of them. Examples are sunlight and wind.

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Can they Change?

• Renewable resources can become nonrenewable. If
  their levels become severely decreased, they may
  not be able to replenish themselves.
• If a species is endangered it may not be able to
  prevent becoming extinct.

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EXIT TICKET

1. What is a renewable resource?
2. What is a non-renewable resource?
3. What is a perpetual resource?
4. Describe how a renewable resource can become a
   non-renewable resource

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Warm-Up!

1. What do we use coal, oil, and natural gas for?
   How are they different from one another?
2. Are we using our energy sources efficiently and
   wisely?
3. How can you personally help reduce the amount of
   energy that you consume?

Todays Key Points Coal is our most commonly
used energy source Traditional energy is
nonrenewable There are several drawbacks to using
traditional energy sources
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Todays Exit Ticket

1. Explain how coal is formed
2. Explain how natural gas is formed
3. Explain how oil is formed
4. List two drawbacks of using traditional energy
   sources (one of these must come directly from the
   video we watched today in class)

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FOSSIL FUELS!!!

• Hydrocarbons formed into
• Coal (solid)
• Oil (Liquid)
• Natural Gas (methane mostly)
• 300 Years of Fossil Fuels
• Used by themselves or processed to produce
  cleaner products like propane or gasoline
• They are also used to produce chemicals,
  fertilizers, and plastics

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Why do we care about our use of fossil fuels?!

• 85 of the worlds energy needs comes from fossil
  fuels
• Most energy comes from coal, oil, and natural gas
• Natural gas has the lowest environmental impact,
  but coal will last the longest of our fossil fuel
  reserves

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FUN FACT

• If you are cold you are more likely to be hungry,
  because you are using energy!

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U.S. Energy Production vs. Consumption
Commodity U.S. Production U.S. Consumption
Oil 18 39
Natural Gas 27 23
Coal 33 23
Nuclear 10 7
Renewable 9 3.6
Hydroelectric 5 4
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Carbon!

• The amount of carbon is what makes an energy
  source usable
• Example
• Which of the following types of coal would
  produce the greatest amount of energy?

Type of Coal Noncombustible Compounds () Carbon Content ()
Lignite 20 35
Bituminous Coal 20-30 55-75
Anthracite 1 95
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Fossil Fuels in our AIR

• The carbon that makes our energy usable, is the
  same carbon that pollutes our air
• Biggest single source of human-created air
  pollution

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• COAL FORMATION
• Ancient trees and plants died in swamps and sank
  to the bottom and formed peat.
• Over millions of years sand, clay and other
  sediment covered the peat, forming sedimentary
  rock.
• Pressure from the rock squeezed out the water.
  Over time it fossilized and turned into coal.

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• OIL AND NATURAL GAS FORMATION
• Animals in ocean died and sink to sea floor.
  Remains become covered in sediment.
• As layers of sediment settled, pressure and heat
  turned the remains into oil and gas.
• As earths surface changed, pockets of oil and
  natural gas became trapped in the rock.

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• OIL AND NATURAL GAS FORMATION
• Mining is used to get the coal used to burn coal
  in power plants. Mining is also used to get the
  uranium used to make nuclear energy.
• As a result of mining, acids are released into
  the water supply. This can harm plants and
  animals.
• Methane is released. Methane is a greenhouse gas
  - what is methanes warming potential? Where
  does methane come from?

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• OIL AND NATURAL GAS FORMATION
• Strip mining, or surface mining of coal
• completely eliminates existing vegetation
• destroys the genetic soil profile
• displaces or destroys wildlife and habitat
• degrades air quality, alters current land uses
• to some extent permanently changes the general
  topography of the area mined
• Soil removal from the area to be surface mined
  alters or destroys many natural soil
  characteristics, and may reduce its productivity
  for agriculture or biodiversity.

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• OIL AND NATURAL GAS FORMATION
• After mining is over, the company must complete
  the process of reclamation.
• Reclamation is returning the land to its original
  condition. This includes the material replacement
  (making the land LOOK the same), as well as
  replacing vegetation and the type of soil on top.

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Fossil Fuel Gallery Crawl!

• Natural Gas
• Coal
• Oil

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FUEL

• The Documentary
• Fill in your guides as you watch this video
  your exit ticket will come directly from this!

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Drawbacks of Traditional Energy Resources

• Emissions
• coal-fired plants produce most emissions
• Coal generates 2,249 pounds of carbon dioxide, 13
  pounds of sulfur dioxide and 6 pounds of nitrogen
  oxides for every megawatt hour of energy
  generated
• Water Use
• water removal for traditional energy use can
  damage wildlife populations of rivers and lakes

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Drawbacks, cont.

• Pollution
• Coal, natural gas and nuclear power all add
  pollutants to water that, if discharged into a
  lake or stream, can negatively impact water
  quality and harm wildlife
• coal produces a solid waste called ash in
  addition to the pollution created during the
  mining process
• Public Health

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EXIT TICKET

• Are you ready? Questions?

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Todays Exit Ticket

1. Explain how coal is formed
2. Explain how natural gas is formed
3. Explain how oil is formed
4. List two drawbacks of using traditional energy
   sources