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