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Oxford Discover 3 Words U9
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noun a gas that comes from under the ground and that you can use for heating and cooking things
natural gas
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noun a hard black thing that comes from under the ground and gives out heat when you burn it
coal
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noun a boat that uses one or more sails to catch the wind
sailboat
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noun a tall building with long, flat parts that turn in the wind
windmill
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noun an area of land with a lot of wind turbines on it that are used to make electricity
wind farm
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noun a place with machines that make electricity
power plant
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noun a special type of windmill that is used to make electricity
wind turbine
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adj. ... sources of energy will always exist because they can be replaced after they are used
renewable
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noun a place where something comes from
source
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noun fuels like gas or oil that comes from the ground. … were formed over million 5 of years from dead animals or plants
fossil fuels
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adj. ... sources of energy like gas or oil cannot be replaced after they are all used
nonrenewable
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noun that comes through wires. … can make heat and light, and makes machines work.
electricity
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noun a thick liquid that comes from under the ground or the ocean. We use …. for energy and to make machines work smoothly
oil
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noun the action of making the air and water dirty and dangerous
pollution
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