P3.1 Energy demands

Question 1

where are fossil fuels from

Answer 1

long dead plants and animals

Question 1

how does a coal or oil power station work

Answer 1

• coal or oil powered stations, the burning fuel heats the water in a boiler
• this produces steam
• steam drives a turbine that turns an electricity generator

Question 2

where are biofuels from

Answer 2

any fuel taken from a living or recently living organisms

Question 3

what are two properties of biofuel

Answer 3

carbon neutral and renewable

Question 4

where is nuclear energy taken from

Answer 4

atoms

Question 5

what is the waste of nuclear energy

Answer 5

radioactive waste that needs to be stored for many years