Which will light a bulb?

• A battery and a paper clip
• A battery and a wire
• A paper clip and a wire
• A switch and a wire

Where does electricity enter and exit the bulb?

• 1 and 2
• 2 and 3
• 3 and 4
• 4 and 1

Which part of the bulb gives off light? 

• 1
• 2
• 3
• 4

Lightbulbs use electricity to make light. What else do lightbulbs often give off?

• Food energy
• Heat Energy
• Solar Energy
• Wind Energy

Which bulbs will light?

• 1 and 2
• 2 and 3
• 3 and 4
• 4 and 2

Look at the drawing. What is the wire?

• A conductor
• A receiver
• An insulator
• An energy source

One D size battery produces 1.5 volts. How many total votes would 20 D-cell batteries produce?

• 7.5 volts
• 30.0 volts
• 21.5 volts
• 35.5 volts

Leo built a circuit tester. Which describes objects that complete the circuit?

• Batteries
• Conductors
• Diodes
• Insulators

Which best describes objects that can complete a circuit? 

• Most are silver in color
• Most are thick and smooth
• Most are made of metal
• Most are long and flexible

In the picture, what powers the circuit?

• 1
• 2
• 3
• 4