P3

Question 1

Biofuel

Answer 1

Any fuel taken from living or recently living materials, such as animal waste

Question 2

Carbon-neutral

Answer 2

A biofuel from a living organism that takes in as much carbon dioxide from the atmosphere as is released when the fuel is burned

Question 3

geothermal energy

Answer 3

energy released by radioactive substances deep within the Earth

Question 4

National grid

Answer 4

the network of cables and transformers used to transfer electricity from power stations to consumers (i.e., homes, shops, offices, factories etc.)

Question 5

Nuclear fuel

Answer 5

substance used in nuclear reactors that releases energy due to nuclear fission

Question 6

Nucleus

Answer 6

tiny positively charged object composed of protons and neutrons at the centre of every atom

Question 7

Reactor core

Answer 7

the thick steel vessel used to contain fuel rods, control rods and the moderator in a nuclear fission reactor

Question 8

Renewable energy

Answer 8

energy from natural sources that is always being replenished so it never runs out