18 terms

7th Gr. Science - Resources/Fuels

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
organic matter that can be a source of energy
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
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)
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
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
photochemical haze that forms when sunlight acts on industrial pollutants and burning fuels