A frosted window is _________________________.
translucent
White light is made up of a ______________________ of colors.
spectrum
_______________________ depends on the number of vibrations per second.
pitch
We measure how loud or soft a sound is in ____________________________.
decibels
___________________________ lightbulbs are very bright, but they get very hot.
halogen
A pencil in a glass of water looks broken because the light is ____________________________.
refracted
An echo is ____________________________ sound.
reflected
Soft materials help _________________________ sound in a room.
absorb
When people speak, the produce _____________________________________ with their vocal cords.
vibrations
A glow stick is an example of _____________________________ light.
bioluminescent