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SOURCES OF ENERGY. Ms. Ashby’s Third Grade Science Class. We use energy every day. Energy is need to operate machines, to heat and cool our homes and schools, to cook, to provide light and to take people from place to place. . THE SUN. Almost all of the energy we use comes from the sun.

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sources of energy

SOURCES OF ENERGY

Ms. Ashby’s Third Grade Science Class

slide2

We use energy every day. Energy is need to operate machines, to heat and cool our homes and schools, to cook, to provide light and to take people from place to place.

the sun
THE SUN
  • Almost all of the energy we use comes from the sun.
  • The sun is like a giant energy factory.
  • The easiest way to get energy from the sun is to use its light.
solar energy
SOLAR ENERGY
  • Solar energy is used to perform small jobs.
  • People catch energy from the sun by using solar cells.
fossil fuels
Fossil Fuels
  • Coal, oil and natural gas are fossil fuels.
  • Fossil fuels are formed in the earth from plants and animals that died millions of years ago.
  • Fossil fuels are a nonrenewable form of energy. That means that they can not be replaced once they are used.
slide7
COAL
  • Coal is an important fossil fuel.
  • Coal is found underground.
  • Coal is used to make electric power.
  • When coal is burned, it pollutes the air.
slide9
OIL
  • Oil is removed from deep within the Earth. Workers pump oil out of the Earth using wells.
  • Oil is used to make gasoline and heating fuel.
natural gas
NATURAL GAS
  • Natural gas comes from the Earth.
  • Natural gas is a clean source of energy.
  • Natural gas can be compressed into a liquid and moved long distances through pipelines.
other forms of energy
Other Forms of Energy
  • Energy from water is called Hydropower.
  • Falling or moving water can be used to create energy.
wind power
WIND POWER
  • Wind power turns windmills and moves sailboats.
conservation
CONSERVATION
  • Since fossil fuels are a nonrenewable source of energy, it is important that we conserve energy.
  • We can conserve energy by turning off lights when they are not being used, walk instead of drive if we are going short distances and wear layers of clothes to keep warm.
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