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unit four science
energy,resorses, transformaton
Question | Answer |
---|---|
energy | the ability to do work. The ability of a system to do work; reqiured for changes to happen within a system |
biomass | Material delivered from living things |
coal | a hard, black solid fuel from the remains of planets millions of years and extracted from the ground; a nonrenewable fossil fuel |
energy resource | A source or supply of energy that can be used to generate electric power meet people's needs |
fossil fuel | a natural, nonrenewable fuel such as coal, oil, natural gas formed a very long time ago from the remains of living organisms |
geothermal energy | heat transformed from beneath the surface of earth and used to produce energy for human uses |
greenhouse gasses | gases in the atmosphere that trap heat within the atmosphere |
hydropower | a renewable source of energy based on the natural moment of water |
landfill | a disposable site for solid waste |
natural gas | a gas, usually found in the ground positioned above the petroleum deposits, that's burned to obtain energy; a nonrenewable fossil fuel |
nonrenewable | not replaced by natural means within a short period of time |
nuclear power | energy harnessed from the decay of uranium atoms |
petroleum (oil) | a flammable, yellow-to-black liquid composed of hydrocarbons occurring naturally beneath earth surface; a nonrenewable fossil fuel processed to make gasoline used in vehicles |
pollution | the presence of harmful or unwanted levels material in the environment |
renewable | replaceable by natural means in short period of time |
solar power | energy collected from the sun and converted into useable energy; a renewable resource |
wind energy | energy from turbines that harnesses the movement of air and convert it to useable energy; a renewable blend source |