Unit 10 lesson 4 What Are Conductors, and Insulators? G4

......................are materials that do not allow electricity to flow

• Conductors

• Insulators

• Semiconductors

• Electric wires

......................are materials that allow electricity to flow

• Conductors

• Insulators

• Semiconductors

• Electric wires

......................are materials that allow electricity to flow easily.

• Copper, Iron, and silver

• Plastic ,rubber, and glass

• Wood , oil

• air components

......................are good insulators.

• Copper, Iron, and silver

• Plastic ,rubber, and glass

• Wood , oil

• Metals and acids

......................are good conductors.

• Copper, Iron, and silver

• Plastic ,rubber, and glass

• Wood , oil

• Metals and acids

Electric wires are made up of copper from inside while they are covered with plastic from outside. Explain why that.

This picture shows ...........

• conductors

• insulators

• metals

• semiconductors

This picture shows ...........

• conductors

• insulators

• metals

• semiconductors

When you pull a fridge knob or handle and immediately you get shocked. You infer that ................

• the handle is a good insulator.

• the handle is a good conductor.

• the electric current went off.

• the handle is a good insulator but you hand is a good conductor.

Silicon is a/an ........................

• conductor

• insulator

• semiconductor

• solution