Turn candy into a science lab with this colorful and mesmerizing experiment!
If you’re looking for a fun, hands-on way to introduce your kids to the magic of science, the Skittles Rainbow Science Experiment is the perfect activity. It’s easy to set up, uses supplies you probably already have at home, and creates a stunning rainbow that feels almost like magic—while teaching real science concepts.
This sweet experiment is a great way to explore solubility, color mixing, and the scientific method with learners of all ages. Plus, it’s quick, safe, and a total hit for a rainy day, classroom activity, or even a candy-themed birthday party.
What You’ll Need:
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A pack of Skittles (or similar colorful candy)
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A white plate (shallow and round works best)
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Warm water
How to Do It:
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Arrange your Skittles in a circle around the edge of the plate. Get creative with your color pattern!
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Slowly pour warm water into the center of the plate until it just covers the bottom and touches all the Skittles.
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Watch the magic happen! Within seconds, you’ll see the colors begin to dissolve and spread inward, forming a beautiful rainbow pattern.
The Science Behind It:
Each Skittle is coated with a sugar and food coloring layer. When warm water is added, the sugar dissolves and the colored water begins to spread. Because the candies are placed evenly and the water moves slowly, the colors don't mix right away—creating a bright, striped rainbow effect.
This experiment is a great way to introduce kids to:
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Dissolution (how solids dissolve in liquids)
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Density and color barriers
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Scientific observation and prediction
Extend the Learning:
Encourage your kids to make hypotheses and experiment with variables. Try questions like:
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What happens if we use cold water instead of warm?
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Will the colors mix if we use a different candy?
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What if we use milk or vinegar instead of water?
Let them test their theories, compare results, and draw conclusions—just like real scientists!
Final Thoughts:
This Skittles Rainbow Science Experiment is more than just eye candy—it’s a hands-on, exciting way to spark curiosity and introduce scientific thinking at home or in the classroom. Your little learners will love the colorful results and you’ll love how easy and educational it is.
So grab some Skittles, pour some water, and watch the rainbow come to life!
Credit: This activity was originally shared by Colleen Kessler at Raising Lifelong Learners.