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18 terms

Science Vocabulary Chapter 27

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geyser
a spring that emits intermittent jets of heated water and steam
natural resources
parts of earth's that supply materials useful or necessary for the survival of living organisms
renewable resource
natural resources, such as water, sunlight, and crops, that are constantly being recycled or replaced by nature.
nonrenewable resource
natural resources such a petroleum, minerals, and metals, that are used more quickly than can be replaced by natural processes
petroleum
nonrenewable resourse formed over hundreds and millions of years mostly from the remains of microscopic marine organisms buried in earth's crust.
fossil fuels
nonrenewable energy resources-coal,oil, and natural gas-that formed Earth's crust over hundreds and millions and years.
hydroelectric power
electricity produced when the energy of falling water turns the blades of a generator turbine.
nuclear energy
energy produced by the splitting apart of billions of uranium nuclei by nuclear fission reaction
geothermal energy
heat energy within Earth's crust, available only where natural geysers or volcanos are located
atmosphere
the whole mass of air surrounding Earth
pollutant
substance that contaminates any part of the environment
acid precipitation
precipitation with a pH below 5.6 which occurs when air pollutants from the burning of fossil fuels react with water in the atmosphere to form strong acids- that can pollute water, kill fish and plants, and damage soils
greenhouse effects
heat-trapping feature of the atmosphere that keeps Earths warm enough to support life.
ozone depletion
thinning of the Earth's ozone layer caused by chlorofluorocarbons (CFCs) leaking into the air and reacting chemically with ozone, breaking the ozone molecules apart.
erosion
movement of soil from one plate to another
hazardous waste
waste materials, such as pesticides and leftover paints, that are harmful to human health or poisonous to human living
reprocessing
to subject to a special process or treatment in preparation for reuse
recycling
conservation method that is a form of reuse and requires changing or reprocessing an item or natural resource.