A quick movement back and forth is called ...

• vibration

• song

Vibrations that you can hear are called ...

• voice

• sound

Translucent means ...

• you cannot see through it at all.

• you can somewhat see through it.

Opaque means ...

• you cannot see through it at all.

• you can see through it clearly.

You can use sound to communicate.

• True
• False

The sun is a source of light.

• True
• False

I can communicate in the dark by using ________.

Look at the picture. Which represents transparent the best?

• A

• B

• C

Which of the following items are transparent?

• Plastic wrap

• Windshield

• Stain glass window

• Construction Paper

• Magnifying glass

Tags

NGSS.MS-PS4-2

How can you see in the dark?