Energy Sources

Question 1

Water is pumped in pipes to hot rocks and returns as steam to drive a turbine

Answer 1

Geothermal

Question 2

Water is stored in a reservoir using a dam, then flows through turbines

Answer 2

Hydroelectricity

Question 3

Burning plant matter such as wood chips and straw

Answer 3

Biofuel

Question 4

The most energy efficient energy source

Answer 4

Nuclear

Question 5

The energy source that is used to generate most of our electricity

Answer 5

Fossil fuels

Question 6

Some people think these are an eyesore, and find them noisy

Answer 6

Wind turbines

Question 7

These are best used to generate electricity on a small scale, e.g. watches, road signs, calculators and satellites

Answer 7

Solar cells

Question 8

This energy source can be unreliable if there’s not much wind, and a hazard to boats.

Answer 8

Wave energy

Question 9

The source of this energy is the gravity of the Sun and Moon

Answer 9

Tidal energy

Question 10

This energy source has the most harmful waste products

Answer 10

Nuclear