is not used up, or it can be replaced in our lifetime.

will run out and cannot be replaced in our lifetime.

is where substances that can harm living organisms are released into the environment.

is a chemical reaction where a substance reacts with oxygen to release energy. It is also called combustion.

Using renewable energy resources

Science

In the Energy changes in reactions unit, pupils will build on this knowledge to learn more about exothermic and endothermic reactions, as well as learn about bond energies and reaction profiles.

In the Understanding chemical reactions unit, pupils learnt about how atoms move around to form new substances in chemical reactions and about some common types of chemical reactions.

Fuels and energetics

Resource that is not used up or can easily be replaced in our lifetime

Resource that is used up and cannot be easily replaced .

Substances that harm living things are released into the environment.

A chemical reaction; a substance reacts with oxygen to release energy.

Match the following terms to the correct definitions.

Which of the following are examples of renewable energy resources?

They only generate electricity if there is enough sunlight.

They use fields that could be used for animals or crops.

They can be placed on the roofs of buildings.

Which of the following are disadvantages of solar power?

They are expensive to manufacture and install.

Which of the following are advantages of wind power?

{{}} power uses turbines that turn when sea water flows through them.

True or false? Geothermal energy uses hot water and steam from deep underground to turn turbines.

Combustion is the reaction between a fuel and {{}}.

they produce pollutants such as carbon dioxide

they can release large quantities of energy

Which of the following are disadvantages of burning non-renewable energy resources? 

Wood pellets can be burned in a power station to generate electricity. Which of the following are products of the combustion of wood pellets?

Burning a fuel is an example of a combustion reaction and {{}}.

In a power station, steam turns the {{}} which turns electrical generators that produce electricity.

Which of the following are examples of non-renewable sources of energy?

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