7th Gr. Science - Resources/Fuels

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nuclear energy

the energy released by a fission or fusion reaction; the binding energy of atomic nucleaus

chemical energy

the energy released when a chemical compound reacts to produce new compounds

solar energy

the energy received by the earth from the sun in the form of radiation

wind power

the use of a windmill to drive an electric generator

hydroelectric energy

electrical energy produced by falling water

biomass

organic matter that can be a source of energy

gasohol

a mixture of gasoline and alcohol that is used as a fuel

geothermal energy

the energy produced by heat within the Earth

natural resource

any natural material that is used by humans, such as water, petroleum, minerals

renewable resource

a natural resource that can be replaced at the same rate at which the resource is consumed

nonrenewable resource

a resource that forms at a rate that is much slower than the rate at which consumed

recycling

the process of recovering valuable or useful materials from waste or scrap

fossil fuel

a nonrenewable energy resource formed from the remains of organisms that lived long ago (oil, coal)

petroleum

a liquid mixture of complex hydrocarbon compounds

natural gas

a mixture of gaseous hydrocarbons located under the surface of the Earth, often near petroleum deposits

coal

a fossil fuel that forms underground from partially decomposed plant material

acid precipitation

precipitation that contains a high concentration of acids, often because of the pollution of atmosphere

smog

photochemical haze that forms when sunlight acts on industrial pollutants and burning fuels

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