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5º Primary - Energy Unit 4
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Where can chemical energy be stored?
batteries
Using things again and again is an example of _________.
reusing
Turning of the lights is a way of ________ _______.
saving energy
Energy that is obtained from sources that are unlimited are called________ _______.
renewable energy
Green buildings save energy because they use ________ energy.
solar
When you buy products that do not have a lot of packaging. This is considered?
Reduce
In order to protect our planet we should practise the three Rs. What do the three Rs stand for?
reduce, reuse and recycle
Water in the atmosphere dissolves polluting gases and when it rains, it is called ________.
acid rain
The extra carbon dioxide in the atmosphere cause...
global warming
The kinetic energy from windmills produce ________ energy.
electrical
Some examples of non-renewable energies are...
petroleum, coal, uranium and natural gas
This black rock is composed mainly of carbon and is used as fuel.
Coal
Nuclear power stations use this radioactive metal...
Uranium
Natural gas is found _____________.
underground
Three examples of biofuels come from _______ and ________.
plants and animals
We get hydroelectric energy from _______ that is in a reservoir. Then it passes through a _________.
water.....turbine
Solar panels transform light energy from the Sun into...
electrical energy
The chemical energy stored in food are__________.
calories
Planes and cars transform the chemical energy into mechanical and ________ energy.
thermal
A washing machine transforms ___________ energy into mechanical energy.
electrical
Sound energy is made when...
playing a musical instrument
Some examples of chemical energy are...
mobile phone, tablets, alarm clock, etc
A bicycle is an example of....
Kinetic energy
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