When light shines onto a smooth surface, the light bounces off in the ___________ direction.

When light bounces off a rough surface it goes in _________ direction(s.)

A surface that curves inward and makes things close to it look larger is

A surface that curves outward and makes things look smaller is _______.

A ________ is a piece of glass or other transparent object that refracts light and produces an image

Light is the only __________ wave that is visible to the human eye

Electromagnetic waves travel at different speeds

Radar and cellular phones use microwaves.

_______ can be used in medicine, art, and engineering