Front

What is sound?

Back

Sound is a type of energy that travels in waves and can be heard when it reaches our ears.

Front

How does sound travel?

Back

Sound travels through different materials such as air, water, and solid objects.

Front

What is vibration?

Back

Vibration is the back-and-forth movement that creates sound.

Front

What do we call materials that allow light to pass through completely?

Back

Transparent materials allow all light waves to pass through.

Front

What do we call materials that do not allow any light to pass through?

Back

Opaque materials do not allow any light to pass through.

Front

What happens to light when it hits a mirror?

Back

Light gets reflected when it hits a mirror.

Front

What is a translucent material?

Back

Translucent materials allow some light waves to pass through, but not in a straight path.

Front

Why is a leaf green?

Back

A leaf is green because it absorbs all colors of light except green.

Front

What is an echo?

Back

An echo is a sound that is reflected off a surface and heard again.

Front

What is reflection in terms of light?

Back

Reflection is when light bounces off a surface.