Week 9 Science 4th Grade

Which lamp has an open circut?

• 1

• 2

Which lamp has a closed circut?

• 1

• 2

Which force causes static electricity to build on an object?

• electric

• friction

• gravity

• thrust

What type of energy creates lightning?

• solar electricity

• static electricity

• hydroelectric electricity

• current eletricity

Kayden's favorite lamp stops working. It is plugged in. The bulb works in another lamp. What is his next step to fix the lamp?

• Dust and wipe all of the lamp surfaces

• Check that the lamp sits even and level.

• Make sure the lamp shade is screwed in.

• Inspect the cord to see if the circut is broken.

A switch in one position turns lights on. The lights are off in the other position. What does the switch do?

• generates electricity

• builds up a static charge

• opens and closes a circut

• reverses the charge of the light bulb

Some devices need more electricity to function. This requires more _______________ in the circut.

Explain why electricity does not "fall out" of a wall socket.

Observe the image of a light bulb. Explain how the light bulb completes a circuit.