Light: bounce, bend, see
Optics is the study of light and how it behaves.

Picture in words: 1. Source: A source such as the Sun or a lamp emits light.
2. Reflection: Light can bounce from a surface. A smooth mirror produces an orderly reflection.
3. Refraction: Light can change direction when it passes between materials, such as air and glass.
4. Seeing: Light enters the eyes; the brain uses signals from the eyes to form an image.

One more wonder: A lens changes the direction of light. It does not create extra light.
Never look at the Sun or shine bright lights into eyes. Do not focus sunlight with a lens.

Question: What is light bouncing off a mirror called?
Answer: Reflection

Sources:
Science and Media Museum: Light Lab — https://www.scienceandmediamuseum.org.uk/sites/default/files/2017-03/Light%20Lab.pdf

Reviewed 28 September 2026. Simplified educational illustration, not to scale.
https://atherverse.com/kids/how-things-work/optics/