100

Amplitude

the maximum height of a wave

100

Light

a type of wave that carries energy from one place to another, even through empty space

100
Reflect

to bounce off without absorbing

100
Wavelength

the distance from one peak of a wave to the next

200

Transmit

to pass through

200

Infrared

a type of invisible light that is beyond red on the spectrum

200

Absorb

to take in

200

Waveform

a curved line that shows the characteristics of a wave

300

Emit

to give off

300

Matter

anything that has mass and takes up space

300
Spectrum

a range of wavelengths

300

Light Source

an object that emits light

400

Energy

the ability to make things move or change

400

Frequency

the number of peaks of a wave that pass in a seconds

400

Period

the time between one peak of a wave to the next

400

Molecule

a group of atoms joined together in a particular way

500

Wave

a pattern that describes how energy is carried from one place to another

500

Ultraviolet

a type of invisible light that is beyond violet on the spectrum

500

Visualize

to form a mental picture of something that cannot be seen

500

Rate

how often or fast something happens