Light travels faster than sound.

Sound travels well in a vacuum, a space with no particles.

Sound is made from vibrations that travel in waves.

The earth's main source of light is the sun.

Shadows are formed because light cannot bend around objects.

Light that is reflected is absorbed, or soaked up, into something.

A straw that seems to bend or break apart in a glass of water is an example of refraction.

The setting of the narrative you heard is in Florida in the winter.

The point of view of the narrative is told from the first person, using the words I, me, and mine for the narration.

What parts of your body produce your voice?

Objects that do not allow light to pass through them are called __

The frequency of vibrations affects the ____of a sound.

Color is determined by how light is transmitted, reflected, and ____.

A lens is a ____ object that light can pass through and that is used in many instruments, such as eyeglasses and cameras.

Light and sound are both forms of energy.

Sound travels faster than light.

A rainbow occurs when light passes through a raindrop and the light is refracted into different colors.

A concave mirror curves inward, whereas a convex mirror curves outward.

Alexander Graham Bell invented the ____.