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Презентация на тему: Producing Electricity


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Презентация на тему: Producing Electricity


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№ слайда 2 The energy resources used to generate electricity can be divided into two catego
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The energy resources used to generate electricity can be divided into two categories: The energy resources used to generate electricity can be divided into two categories: nonrenewable and renewable.

№ слайда 3 Nonrenewable resources cannot be increased. We can make these supplies last long
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Nonrenewable resources cannot be increased. We can make these supplies last longer by using them wisely, but when they are gone we will not have any more. Nonrenewable resources cannot be increased. We can make these supplies last longer by using them wisely, but when they are gone we will not have any more.

№ слайда 4 The majority of electricity used in the world is generated at power plants that
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The majority of electricity used in the world is generated at power plants that burn fossil fuels to heat water and make steam. The steam is highly pressurized and directed at turbine ['tɜbaɪn] blades to make them spin. The majority of electricity used in the world is generated at power plants that burn fossil fuels to heat water and make steam. The steam is highly pressurized and directed at turbine ['tɜbaɪn] blades to make them spin.

№ слайда 5 The three forms of fossil fuels are The three forms of fossil fuels are coal, oi
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The three forms of fossil fuels are The three forms of fossil fuels are coal, oil, and natural gas. They are known as fossil fuels because they were formed from the fossilized remains of animals or plants that lived long ago.

№ слайда 6 Nuclear power plants use the heat from splitting atoms to convert water into the
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Nuclear power plants use the heat from splitting atoms to convert water into the steam that turns turbines. Nuclear power plants use the heat from splitting atoms to convert water into the steam that turns turbines.

№ слайда 7 Renewable energy resources can be replenished in a short period of time, so they
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Renewable energy resources can be replenished in a short period of time, so they will never be all used up. Energy companies all over the world are using renewable resources more and more to generate electricity. Renewable energy resources can be replenished in a short period of time, so they will never be all used up. Energy companies all over the world are using renewable resources more and more to generate electricity.

№ слайда 8 Biomass is organic matter, such as agricultural wastes, and wood chips and bark
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Biomass is organic matter, such as agricultural wastes, and wood chips and bark left over when lumber is produced. Biomass can be burned to heat water to make steam, which turns a turbine to make electricity. It can also be converted into a gas, which can be burned to do the same thing. Biomass is organic matter, such as agricultural wastes, and wood chips and bark left over when lumber is produced. Biomass can be burned to heat water to make steam, which turns a turbine to make electricity. It can also be converted into a gas, which can be burned to do the same thing.

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№ слайда 11 Hydrogen is a colorless, odorless gas. Hydrogen can be converted into electricit
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Hydrogen is a colorless, odorless gas. Hydrogen can be converted into electricity through a chemical reaction in a device called a fuel cell. Converting hydrogen into electricity produces no pollution—only water and heat. Hydrogen is a colorless, odorless gas. Hydrogen can be converted into electricity through a chemical reaction in a device called a fuel cell. Converting hydrogen into electricity produces no pollution—only water and heat.

№ слайда 12 Hydroelectric plants use the power of falling water to turn the turbines that he
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Hydroelectric plants use the power of falling water to turn the turbines that help generate electricity. Hydroelectric plants use the power of falling water to turn the turbines that help generate electricity.

№ слайда 13 The energy of the ocean's waves and tides can also be used to generate electrici
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The energy of the ocean's waves and tides can also be used to generate electricity with dams that force ocean water through turbines. This is called tidal energy, or wave power. The energy of the ocean's waves and tides can also be used to generate electricity with dams that force ocean water through turbines. This is called tidal energy, or wave power.

№ слайда 14 The world's first wave power station is on the Scottish island of Islay. It gene
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The world's first wave power station is on the Scottish island of Islay. It generates enough electricity for about 400 homes. The world's first wave power station is on the Scottish island of Islay. It generates enough electricity for about 400 homes.

№ слайда 15 Solar energy is generated without a turbine or electromagnet.. Solar energy is g
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Solar energy is generated without a turbine or electromagnet.. Solar energy is generated without a turbine or electromagnet..

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№ слайда 17 Wind power is renewable energy that uses the force of the wind to spin turbines.
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Wind power is renewable energy that uses the force of the wind to spin turbines. These spinning turbines generate electricity. Wind power is renewable energy that uses the force of the wind to spin turbines. These spinning turbines generate electricity.

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