Sound

Sound travels in ......

• waves

• loops

• zigzags

High pitched sounds have waves that are......

• short

• long

Low pitched sounds have waves that are....

• short

• long

A machine scientists use to see sound waves is called an.....

• computer

• wave machine

• oscilloscope

• telescope

Sounds are basically just....

• noises

• vibrations

• atoms

An echo is when sound....

• bounces back to you off a surface

• goes under water

• travels through space

Can you hear sounds in space?

• yes

• no

Why can't you hear anything in space?

• There is no air in space

• It is too big to make a sound loud enough

• You can't yell in a spacesuit

When animals communicate underwater sound travels through....

• air bubbles

• water

• seaweed

What happens to your throat when you speak?

• It closes

• it vibrates

• it opens