Water Waves
Sound, Energy, and Change
Light Waves
Invisible Energy
Codes and Signals
100

The highest part of a wave is called this. 

Crest

100

Sound waves cannot move through this.

Space, areas with no matter.

100

The majority of earths light is produced by this star.

The Sun

100

These are all the colors of the visible light spectrum.

Red, Orange, Yellow, Green, Blue, Indigo, Violet

100

This common signal tells us when to stop, slow down, or go. 

Traffic light.

200

The distance from one crest to another is called this. 

Wavelength

200

Sound waves do this to the air around us, making it so we can hear one another speak.

Vibrate

200

Light bulbs transform this type of energy to light.

Electrical

200

This common kitchen appliance uses waves to heat up your food. 

Microwave.

200

A lighthouse uses this kind of wave to communicate messages across long distances.

Light

300

The vertical distance from the crest to the trough is called this. 

Wave height.

300

This animal is especially sensitive to sound, there are even specific whistles made just for this animal that we cannot hear. 

Dogs

300

Fire undergoes a reaction of this type to create light.

Chemical.

300

Cell phones and walkie-talkies use this kind of wave to send signals.

Radio

300

This set of symbols used by people who speak English uses 26 different symbols called this.

Alphabet.

400

A wave with a greater wave height has more of this than a wave with a smaller wave height.

Energy

400

Sound travels faster than light. Is this true or false?

False

400

Light from the sun takes approximately 8 minutes to reach the earth. True or False?

True

400

If you are wearing a white shirt, what wavelengths or colors of light does your sun absorb?

None of them; it reflects all light.

400

A smile, a wave, or a nod of your head is called this (starts with a g).

Gesture.

500

This is a disturbance that transfers energy through matter or through space.

Wave

500

This is the name for how high or how low a sound is, and is related to the wave's frequency.

Pitch

500

We call an object this if it allows some, but not all light to pass through.

Translucent.

500

This is the type and color of light that can burn us when we are outside for too long. 

Ultraviolet light.

500

This communication method uses a pattern of sounds used to send messages through wires using electrical energy.

Morse code

M
e
n
u