Which of these best completes the circuit?

• rubber band
• metal nail
• leather shoelace
• wooden toothpick

A fifth grade class constructed this circuit.  Which of these objects most likely made the light glow when connected to points X and Y?

• plastic straw
• cotton string
• aluminum foil
• rubber eraser

Tags

NGSS.4-PS3-2

The electrician in this picture is wearing rubber gloves for protection.  The purpose of the rubber gloves is to --

• keep the electrician dry
• create an electrical circuit
• produce electricity
• protect the electrician

Which of these substances conducts electricity the best?

• wood
• brick
• copper
• plastic

Tags

NGSS.HS-PS1-3

NGSS.HS-PS2-6

What material would be safest to use as an insulator to cover electrical wires?

• rubber
• tin
• aluminum
• water

This instrument can be used to see if materials conduct electricity.  Which of these groups contains items that could all conduct electricity to complete the circuit?

• rubber ball, plastic comb, nail
• paper clip, penny, screw
• cork, dollar bill, tweezers
• pencil, eraser, spoon

Which one is a conductor? 

• wood 
• iron 
• plastic spoon 
• paper 

Which of these objects is an insulator?

• Copper Wire
• Paper Clip
• Steel Pole
• Rubber Gloves

An object through which electrons can easily flow is called a(n) ___________.

• Conductor
• Insulator

The rubber around the wires in your electricity kit is a(n)...

• conductor
• current
• insulator
• circuit