Unit 17 L 11

The radio gets _______ from a battery.

• light

• sound

• energy

• water

_______ is energy.

• Sound

• Water

• Plastic

• Wood

Sound energy travels in _______.

• waves

• lines

• circles

• squares

You can use a _______ to call people.

• book

• phone

• pen

• car

People use sound energy to _______ information.

• hide

• share

• destroy

• ignore

What is this chapter about?

• heat

• sound

• light

What does sound travel as?

• string

• sleep

• waves

What does a radio get from a battery?

• energy

• water

• plant

What can you use to call people?

• microwave

• board game

• cell phone

What is important to know about this chapter?

• Antennas turn when the wind blows.

• Energy helps people send information.

• People don't like to use sound energy.