Fossil fuels and Alternative fuels

Ethanol

A biofuel produced by fermenting corn and sugar cane.

Disadvantage of hydroelectric energy

Although generating electricity through this energy does not pollute the atmosphere, building dams to generate electricity affects the surrounding ecosystem.

Solar energy disadvantage

This energy's availability varies from day to day and from season to season.

Wind energy disadvantage

Using this energy is that some days there is little or non, so other resources must be used. This energy is caused by the heating of the Earth's surface by the sun.

Coal

a fossil fuel used for energy which was formed from decomposed plant material.

Natural gas

a fossil fuel used for energy which was formed, through heat and pressure from the reamins of ancient plants and animals. Non-renewable.

fossil fuel

a nonrenewable resource formed from the remains of prehistornic plants and animals.Coal, oil and natural gas

non-renewable resources

a resource that cannot be readily replaced. Coal, oil, natural gas and minerals

renewable resources

resources that can be replaced as they are used.

fossil

the traces or remains of ancient organisms preserved in rock.

100*C

Boiling point of water

Hydroelectric Energy

Energy is electricity created from the power of moving water, which is used to produce other forms of energy. Fast moving water creates more energy than slow moving water.

Alternative fuels

Energy resources provide energy instead of using fossil fuels. Biofuels, hydroelectricity, geothermal wind, and solar are the most common alternative eneryg resources. Renewable.

Solar Energy

energy from the Sun. Can be used to produce electricity or heat. Does not produce pollutants and carbon dioxide .

Wind Energy

moving air caused by the uneven heating of Earth. Can be used to move sailboats, grind corn, pump water and generate electricity.

0*C

Freezing/melting point of water

Geothermal Energy

Derived from heat in the Earth. Using heat from inside the Earth the hot water and steam can be used to produce electricity and to heat buildings. To use this energy, people dig deep wells to pump the heated water and steam to the surface. Hot springs, geysers, and volcanoes are examples of this energy.

Petroleum

A liquid fossil fuel, also known as oil, formed from the remains of ancient plants and animals. Non-renewable

Density

The amount of matter compacted into a given volume of a substance. Oil is less then water.

Biofuels

This is formed from organic matter that contains stored energy. This can release heat through burning. Used to produce heat and electricity/ converted to ethanol, methane gas, biodiesel, and transportation fuels.