Hydroelectricity is

• renewable

• not renewable

• organic

• not organic

Hydroelectricity needs

• water that does not flow

• water that flows

• waves

• tides

In hydroelectricity, the flowing water

• turns on a generator

• sends electricity through the power station

• spins a turbine

• breaks the gate

Hydroelectricity is sustainable because

• the turbines do not break

• the generator is very powerful

• the water cycle keeps the river full of water

• it is not sustainable

Bulbs glow in

• Open circuits

• Closed circuits

• Both circuits

• No circuit

The bulb will not glow because

• The switch is off

• The circuit is incomplete

• The bulb is not fixed correctly

• Both the wires are attached to the positive terminal

When we save electricity, we save

• the environment

• carbon-di-oxide

• fish

• oxygen

Gold is a

• conductor

• insulator

Diamonds are

• conductors

• insulators

In a torch, electricity is generated from

• solar energy

• wind energy

• chemicals

• nuclear energy