What is a wave?
A wave transfers ___________.
Energy
When you can see through something, the material is _______________.
Transparent
The height of a wave is called the _____________.
Amplitude
A sound wave can cause movement by creating _____________.
Vibrations
To send information secretly, you can write it using a ________.
Code
Give one example of a wave you can see or hear.
___________ is when light bounces off of something.
Reflection
The highest point of a wave is called a ________.
Crest
If you increased the amplitude of a sound wave, what would happen?
The sound would get louder.
To _________ is to translate a message in code into a message that can be understood.
decode
Draw an example of a wave.
Draw it!
We cannot see any light through a brick wall, so the wall is ___________.
opaque
The substance that a wave travels through is called a ___________.
Medium
What medium does the sound wave travel through if you yell to your friend across the room?
Air
To ________ is to create a message using secret symbols or letters.
encode