Conductors and Insulators

Why are metals useful for making electrical wire?

• Metals do not bend.
• Metals hold much heat.
• Metals are insulators.
• Metals are conductors.

Which is NOT an insulator.

• Wool
• Plastic
• Copper
• Glass

What is a example of a conductor?

• wood 
• metal
• rubber
• rock

What is a example of a insulator?

• metal 
• rubber
• water

A insulator does not let energy flow through easily 

• True 
• False

A conductor allows energy to easily pass by.  

• True 
• False

Why is electrical wiring usually covered with a layer of plastic?

• To help electricity flow along the wire
• To make it look pretty
• To make it safe

Match the following

a

b

insulator

conductor

Which is a conductor and which is an insulator?

a

b

Conductor

Insulator

Why do wool clothes help keep you warm?