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Energy. What's energy? When you think of energy, what do you think of? The sun?

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Gasoline? Or maybe electricity? All of these are forms of energy, but there are

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other kinds of energy too. Energy is all around you. It is the force that allows

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things to move and happen. Even when you're asleep or just reading a book,

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your body uses energy to make your heart beat, your blood flows and your muscles

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move. Energy is ability to do work and a very important part of how we live. Food

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gives you energy. There are different forms of energy. There are different

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types of energy like light energy, mechanical energy, chemical energy,

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Electrical energy and even solar energy.

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For example, plants use energy from the sun to grow.

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Light energy.

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Objects with light, like the sun, have got light energy.

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Electrical energy.

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Electrical energy makes machines in our homes work.

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Mechanical energy.

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The wind or objects that move have got mechanical energy.

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Thermal energy.

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Thermal energy is energy from heat. For example, fire has got thermal energy.

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Chemical energy. Chemical energy is stored in fuel, food or batteries. Energy can transform from one form to another.

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Energy can be changed from one form to another.

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Coal can be burned to make heat or electricity.

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Wood also makes heat when it burns.

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Think about plants.

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The sun gives them energy to grow.

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Then we eat them and they give us energy to do sport.

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In a toaster, electrical energy transforms into thermal energy.

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In a food mixer, electrical energy transforms into mechanical energy.

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In a car, chemical energy from petrol transforms into mechanical energy when the car moves.

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Electricity

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Electricity is the most popular form of energy.

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Hydroelectric power plants use mechanical energy from water to produce electricity.

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Climate farms use mechanical energy from winds to produce electricity.

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Solar power plants use energy from sunlight to produce electricity.

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Thermal power plants use coal, petroleum or natural gas to produce electricity.

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Electricity is transported along metal cables.

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Electricity is used in homes, in factories, also in means of transport.