Science Energy

Question 1

Source

Answer 1

Where something comes from

Question 2

Non renewable

Answer 2

Can’t be replaced when it runs out

Question 3

Renewable

Answer 3

Can be replaced and doesn’t get used up

Question 4

Where are fossil fuels found and give a short description about them

Answer 4

They are found deep beneath the earth’s crust and under the sea. They are plentiful and quite cheap. They produce air pollution when they are extracted

Question 5

3 examples of fossil fuels

Answer 5

Coal
Petroleum
Natural gas

Question 6

Rocks that contain metal

Answer 6

Ore

Question 7

What is converted to fuel at a nuclear power station

Answer 7

Uranium

Question 8

True/false nuclear power station s are expensive to build and you have to build a new one every 50years

Answer 8

True

Question 9

Short description on nuclear power plants

Answer 9

Don’t prouduce air pollution. Make radioactive waste that has to be buried beneath the ground in special containers

Question 10

Fossil fuels

Answer 10

Fuels formed from the buried remains of dead animals and plants that lived millions of years ago

Question 11

Ore

Answer 11

Rock that contains metal

Question 12

Radio active

Answer 12

Gives off nuclear energy

Question 13

Hydro power

Answer 13

Uses energy in moving water to produce electrical energy called hydro electric power

Question 14

Wind power

Answer 14

Uses kinetic energy in wind that can be converted to electrical energy

Question 15

Do hydro electric power stations produce air pollution and what renewable resource do they use

Answer 15

No, water

Question 16

What are the bad things about wind farms

Answer 16

They are expensive to build
They look unattractive
They make a lot of noise

Question 17

What is sunlight used for

Answer 17

Heating our homes and cooking. We use solar panels with photo volltaic cells to change the sun’s energy into electrical energy

Question 18

What is sunlight used for

Answer 18

Heating our homes and cooking. We use solar panels with photo volltaic cells to change the sun’s energy into electrical energy

Question 19

Explain solar panels

Answer 19

They have photovoltaic cells which change the sun’s energy into electrical energy. They can go up to 5 days without sunlight. You have to wipe the dust off them. They are expensive to purchase but it helps in the long run

Question 20

Photovoltaic cells

Answer 20

Special batteries which converts the sun’s energy into electrical energy

Question 21

Biofuels

Answer 21

Renewable fuel that is made from maize and sugar cane

Question 22

Ethanol

Answer 22

Renewable fuel that can be used on its own or added to petrol. Made from sugar cane and in Brazil it is made from sugar cane and cassava

Question 23

Wood

Answer 23

Renewable resource. The stored energy in wood change a to heat . Over 70% of African ppl rely on wood in their homes. But the cutting down of trees produces more air pollution and other environmental health problem s