Basic concept of light
Light is the visible form of energy that lets us see colors, shapes, and the world around us.
Simple Light Facts
Light travels as waves that our eyes can detect. Important things to know:
- Travels in straight lines (called rays)
- Moves incredibly fast (300,000 km per second)
- Can bounce off mirrors (reflection)
- Bends when moving through water/glass (refraction)
- White light contains all rainbow colors
Fun Fact: Sunlight takes 8 minutes to reach Earth from 150 million km away!
Everyday Light Examples
Rainbows
Form when sunlight bends through raindrops, separating into colors
Shadows
Created when light is blocked by objects
Try This Light Experiment
Make a Rainbow at Home
You'll need: A glass of water, white paper, and sunlight
- Place the glass near a sunny window
- Hold the paper behind the glass
- Tilt until you see rainbow colors!
This works because the water bends different colors by different amounts.

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