Vision and Light Unit Review

Front

What is light?

Back

Light is a form of energy that travels in waves and can be seen by the human eye.

Front

How does light travel?

Back

Light travels in straight lines until it hits an object.

Front

What happens when light hits an object?

Back

When light hits an object, it can be reflected, absorbed, or transmitted.

Front

What is reflection?

Back

Reflection is when light bounces off an object.

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another.

Front

What is the role of the eyes in vision?

Back

The eyes detect light and send signals to the brain to create images.

Front

What is the function of the lens in the eye?

Back

The lens focuses light onto the retina.

Front

What is the retina?

Back

The retina is a layer of cells at the back of the eye that detects light and sends signals to the brain.

Front

How do animals use their senses to find food?

Back

Animals use their senses, like sight and smell, to detect and identify food.

Front

What is the importance of a strong sense of smell for some animals?

Back

A strong sense of smell helps animals identify food and avoid dangers, like poisonous berries.