Y 6 8/12

Sound is a form of energy produced by ______________.

• Vibrations

• Distances

• Prisms

• Forces

Sound waves travel the FASTEST through _____________.

• Gases

• Liquids

• Solids

A place where no sound exists is...

• in the air.

• under water.

• space.

• all of the above

Why do we see lightning before we hear the thunder?

• Our eyes trick us.

• Light travels faster than sound.

• they're two separate things.

What is Pitch?

• How loud or soft a sound is.

• Muscle that holds vocal cords.

• Movement back and forth.

• How high or low a sound is.

____________ is determined by sound's frequency

• Compression

• Pitch

True or False: Can sound travel through a vacuum (space).

• True
• False

True or False: Sound travels better through solids than through liquids

• True 
• False

How is your eardrum like a real drum?

• It produces sound.

• It vibrates.

• It is frequently struck by the bones in your middle ear.

• It is hollow.

What can sounds move through?

• air only

• gases and liquids only

• solids, liquids, and gases