Science Review: Sound

Front

What is sound?

Back

Sound is a type of energy that travels in waves and can be heard when it reaches our ears.

Front

How does sound travel?

Back

Sound travels through air, water, and solid materials as vibrations.

Front

What makes a sound high or low?

Back

The pitch of a sound is determined by the frequency of the vibrations; high frequency means high pitch, and low frequency means low pitch.

Front

What is pitch?

Back

Pitch is how high or low a sound is.

Front

What is a vibration?

Back

A vibration is a rapid back-and-forth movement that creates sound.

Front

What instrument uses air to make sound?

Back

A kazoo is an instrument that uses air blown into it to create sound.

Front

What happens when you blow into a kazoo?

Back

Blowing air into a kazoo makes the wax paper vibrate, producing sound.

Front

Why can we hear bells?

Back

We can hear bells because sound travels from the bell to our ears.

Front

Which bell has the highest pitch?

Back

The smallest bell has the highest pitch.

Front

Which bell vibrates the slowest?

Back

The largest bell vibrates the slowest.