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How rainbows form
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Lesson breakdown
Learn that white light is actually a mixture of all rainbow colors combined, and how we can separate them to see each one.
Understand how light slows down and bends (refracts) when it enters a water droplet, which is the first step in rainbow formation.
Discover that red light bends less than blue light as it passes through water, causing colors to separate—a process called dispersion.
Put it all together: see how light enters droplets, bounces inside, exits at the right angle, and creates the rainbow arc you see in the sky.