Sound and Light

Front

What is sound?

Back

Sound is a type of energy made by vibrations. It travels through air, water, and solid materials.

Front

What is light?

Back

Light is a form of energy that travels in waves and allows us to see the world around us.

Front

What does translucent mean?

Back

Translucent materials allow some light to pass through but not enough to see clearly through them.

Front

What does transparent mean?

Back

Transparent materials allow light to pass through completely, enabling clear visibility.

Front

What does opaque mean?

Back

Opaque materials do not allow any light to pass through, making them impossible to see through.

Front

What is reflection?

Back

Reflection is when light bounces off a surface, like a mirror.

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another, like from air to water.

Front

What is an echo?

Back

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

Front

What is a concave lens?

Back

A concave lens is thinner in the middle and makes objects appear smaller.

Front

What is a convex lens?

Back

A convex lens is thicker in the middle and makes objects appear larger.