4A Electrical Conductors and Insulators

What is a conductor?

• Something that allows electricity to flow through them easily.

• Something that does not allow energy to flow easily. 

Materials that do not allow electricity to flow through them easily are called ________.  

• conductors 

• insulators 

What are some good examples of electrical conductors?

• Metals like iron and copper

• Rubber

• Plastic

• Paper

What is an example of a good insulator? 

• Rubber

• Iron 

• Copper 

Is glass a good electrical insulator or conductor?

• Insulator

• Conductor

_____ is a good conductor of electricity and is often used to make wires.  

• Fiber glass 

• Rubber 

• Copper metal 

______ is an insulator and is often used to cover copper wires so that we are protected from getting electrocuted.  

• Iron 

• Steel 

• Rubber 

Should you play with dangerous electrical wires, cords, or plugs?

• NO.

• YES

Should you use electronics near or in water?

• No, because it is dangerous. 

• Yes, because it is easier to use. 

Most _____ are good conductors of electricity.  

• plastics 

• metals 

• types of glass