Objective

By the end of this lesson, you will understand how light bends when it passes through different materials, a phenomenon known as refraction.

Materials and Prep

• Clear glass of water
• Pencil or pen
• Flashlight or torch
• White paper
• Be curious and ready to explore!

Activities

1. Refraction Experiment: Fill a clear glass with water and place it on a white paper. Shine a flashlight through the side of the glass and observe how the light bends.

2. Drawing Fun: Use a pencil or pen to draw a straight arrow on a piece of paper. Place a glass of water on top of the arrow and see how the arrow appears bent when viewed through the water.

3. Shadow Play: Shine a flashlight through various objects like a glass of water, a plastic bottle, or a prism, and observe how the shadows change and bend.

Talking Points

• Light is a type of energy that travels in straight lines.

"Imagine light as tiny arrows that like to travel in straight paths."

• When light passes through different materials like water or glass, it can bend or change direction.

"When light goes through water, it slows down and bends, making objects appear shifted."

• This bending of light is called refraction.

"Refraction is like light taking a little detour through water or glass."

• Refraction is why objects may appear bent or distorted when seen through water or glass.

"That's why a straw in a glass of water looks broken even though we know it's not!"

• Scientists use the principles of refraction to make lenses for glasses, cameras, and telescopes.

"The bending of light helps us see better and explore the stars!"