Fact 1: Completing a circuit causes electricity to flow through that circuit.

Fact 2: Electricity flows through an electric motor in a fan, causing the fan's blades to turn.

Given the two facts above, answer the question "Completing a circuit causes fan's blades to what?" with the following options: 
- break
 - cycles
 - disappear
 - bend
 - behave
 - Rise
 - energy
 - turn


 

        turn 