What is Sound?

What is sound made by?

• Light

• Electricity

• Heat

• Vibrations

What happens to sound waves as they travel further?

• They get weaker

• They get stronger

• They disappear

• They stay the same

Through which medium does sound travel the fastest?

• Air

• Water

• Metal

• Wood

What is necessary for sound to travel?

• Light

• Electricity

• A medium

• Heat

What part of the ear is filled with liquid and tiny hairs?

• Cochlea

• Anvil

• Hammer

• Eardrum

What do you need in order to create sound?

• an instrument and some music

• vibrations and a medium

• your mouth and your voice

• water and some pebbles