Rocket hums a happy song. Hmmm!
Raven puts her hand on her throat and hums too.
"I feel a buzz!" she says.
Nova blinks. "Where does the buzz come from?"
Put your hand gently on the front of your neck.
Now hum a long hum.
Do you feel a buzz? That buzz is vibration.
When you hum, air moves up from your chest.
The air makes parts in your throat vibrate.
That is how your voice makes sound.
A big vibration makes a loud sound.
A small vibration makes a soft, quiet sound.
Hum softly. Then hum a little louder.
Which hum felt stronger on your hand?
| Sentence | True or false? |
|---|---|
| Parts in your throat vibrate when you hum. | ? |
| A big vibration makes a soft sound. | ? |
| The buzz you feel is vibration. | ? |
| Your voice makes sound by vibrating. | ? |
Here are new sight words.
Look at each word. Say it. Spell it.
An: A-N.
Any: A-N-Y.
Great humming, scientist!
Tomorrow you will make dry rice jump with sound.