CK12 Earth Science
Energy, Fuel, and Heat As you have learned, energy is the ability to move or change matter. To put it another way, you could say ...
this chemical energy is released as heat. The lit match gives off enough heat to set the twigs on fire. This heat is enough ener ...
Figure 5.2: Like other fossil fuels, this piece of anthracite coal is a nonrenewable energy resource. ( 10 ) years to form, we a ...
Important Things to Consider About Energy Resources With both renewable and nonrenewable resources, there are at least two impor ...
http://www.eoearth.org/article/Primary_energy http://www.earthportal.org/ Vocabulary chemical energy Energy that is stored in ...
Introduction Have you ever seen dinosaur fossils at a museum? If so, you may have read about how the dinosaur bones turned into ...
forms a layer of rock that we know as coal. Coal is black or brownish-black in appearance. Coal is a rock that burns easily. Mos ...
Figure 5.3: Refineries like this one separate crude oil into many useful fuels and other chemicals. ( 1 ) main oil producing reg ...
Most of the compounds that come out of the refining process are fuels. The rest make up waxes, plastics, fertilizers, and other ...
used as a fuel. Some of the chemicals in unprocessed natural gas are poisonous to humans. Other parts, such as water, make the g ...
Figure 5.4: Coal power plants like this one release large amounts of steam and smoke into the air. ( 5 ) Nuclear Energy When sci ...
Figure 5.5: Nuclear power plants like this one provide France with almost 80% of its elec- tricity. ( 6 ) Lesson Summary Coal, ...
kinds of coal? What product of nuclear energy has caused concerns about the use of this resource? What is one important fuel th ...
5.3 Renewable Energy Resources Lesson Objectives Describe different renewable resources, and understand why they are renewable. ...
Figure 5.6: Solar panels like these can turn the sun’s energy into electricity to provide power to homes. ( 2 ) Solar power plan ...
many times more than all of the energy we use. For this reason, we consider solar energy a renewable form of energy. For as long ...
Figure 5.9: Hydroelectric dams like this one use the power of moving water to create elec- tricity. ( 8 ) Water Power Earlier in ...
we can build plants to use it, water will be available as a source of energy. The energy of waves and tides can also be used to ...
for hundreds of years. Ships with sails have depended on wind for even longer. Wind can be used to generate electricity, too. Li ...
Geothermal Energy Geothermal energy is a source of energy that comes from heat deep below the surface of the Earth. This heat pr ...
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