Generating Electricity II

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How can electricity be generated by geothermal energy-Volcanic Rocks
Contain radioactive substances e.g. uranium. When these decay they release heat energy, warming up the rocks. In volcanic areas, this may heat water, which rises to the water as hot water and steam. Used to drive turbines and electricity generators.
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How can electricity be generated by geothermal energy-Hot Rocks?
Some places, rocks are hot, but no water/steam. Drilled down, to rocks + pump cold water down. Hot rocks heats up water, returns to surface as hot water and steam. Used to turn turbines & generators.
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Where are some geothermal power stations?
Iceland, California, Italy
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What are the advantages of geothermal energy?
Renewable, no fuel costs, no harmful pollutants
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What are the disadvantages of geothermal energy?
Not widely available-most parts of the world
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Card 2

Front

How can electricity be generated by geothermal energy-Hot Rocks?

Back

Some places, rocks are hot, but no water/steam. Drilled down, to rocks + pump cold water down. Hot rocks heats up water, returns to surface as hot water and steam. Used to turn turbines & generators.

Card 3

Front

Where are some geothermal power stations?

Back

Preview of the front of card 3

Card 4

Front

What are the advantages of geothermal energy?

Back

Preview of the front of card 4

Card 5

Front

What are the disadvantages of geothermal energy?

Back

Preview of the front of card 5

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