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Physical Science Chapter 4
Important terms and Ideas from Chapter 4
18
Science
Undergraduate 1
09/26/2012

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Term
Fossil Fuels
Definition
Coal, oil, and natural gas, decay of remains of plants and organisms
Term
Methane
Definition
main constituent of natural gas, carbon and hydrogen
Term
Green House Effect
Definition
heated, sunlight enters but stays as energy is trapped. Earth is heated like this, infrared
Term
Green House Gases
Definition
absorb infrared readiton, Carbon dioxide, methane, nitrous oxide,
Term
Carbon Capture Storage CCS
Definition
Pumping CO2 into underground reserves
Term
Nuclear Fission
Definition
nucleus splits (uranium) gives off energy,
Term
Nuclear Fusion
Definition
nuclei unite gives off energy. Sun and stars do this.
Term
Geothermal energy
Definition
comes from the heat of the earth's interior
Term
Photovotaaic cell - Solar Cell
Definition
converts the energy in sunlight directly into electric energy
Term
Concentrated Solar Power
Definition
solar energy converted to heat then into electric energy
Term
Fuel Cell -
Definition
Electic current is produced by means of chemical reactions
Term
Biofuels
Definition
plant matter can supplement or replace gasoline and diesel fuel
Term
Cap and Trade -
Definition
Controlling CO2, make them pay for it, or limit it,
Term
Energy Problem
Definition
Increase demand by increase population and prosperity, less fossil fuels, CO2 GLOBAL WARMING
Term
Global Warming
Definition
CO2 in the atmosphere from burning fossil fuels
Term
Natural Gas
Definition
Better than coal and oil,
Term
Coal
Definition
Plentiful, but the worst for the environment, more c02
Term
Clean Energy
Definition
Hydroelectric - Water and Geothermal - earth's heat Solar cells, wind and tides, and waves
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