____________ materials do not let light through. They only absorb and reflect.

The angle at which light strikes a surface is ___________ the angle at which it is reflected.

The index of _________ indicates how much a material reduces the speed of light as it passes through.

____ separate white light into the visible spectrum.

Colors are determined by the ________ of light an object reflects.

_______ objects reflect all colors of visible light.

________ objects absorb rather than reflect all colors of visible light.

Cones and in our eyes help distinguish ________.

Which of these are the primary colors of light?

Primary colors combine to form

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