Sounds

How is sound made?

• when thing has textures

• when thing vibrates

• when thing has grains

• when thing has oxygen in it

What happens when something vibrates?

• it moves to the north

• it moves back and forth quickly

• it moves to the south

• it doesn't move at all

Why does this guitar make sound?

• because it vibrates when it is plucked

• because it doesn't vibrate when it is plucked

• because it vibrates when it isn't plucked

• because it doesn't vibrate when it isn't plucked

Why does the drum make sound?

• because the drum skin doesn't vibrate when it is hit

• because the drum skin doesn't vibrate when it is not hit

• because the drum skin vibrates when it is hit

• because the drum skin vibrates when it isn't hit

Pick the correct sentences.

• Big vibrations make loud sounds.

• Big vibrations make soft sounds.

• Small vibrations make soft sounds.

• Small vibrations make loud sounds.

The ticking of a clock is soft.

Why is this so?

• because it has small vibrations

• because it has big vibrations

• because it doesn't have vibrations

• because it doesn't have batteries in it

The sound of a moving fan is soft.

Why is this so?

• because it has big vibrations

• because it has small vibrations

• because it doesn't have vibrations

• because it is not connected to the electricity

The ringing of a phone is loud.

Why is this so?

• because it doesn't have vibrations

• because it has small vibrations

• because it doesn't have batteries in it

• because it has big vibrations

How does sound move?

• it moves back and forth

• it doesn't move actually

• it moves everywhere

• it moves from its source

What do we wear to protect our ears from a very loud sound?

• a bennie

• a scarf

• a jacket

• earmuffs