Skittles Rainbow Experiment: At-Home Science
June 29, 2020
M&Ms, Gobstoppers, Mentos, and Skittles Rainbow experiment on table

Skittles Rainbow Experiment: Delicious At-Home Science

If you love color, you'll LOVE this Skittles rainbow experiment! It's a science and math activity all in one. The perfect way to use up left over holiday candy or a tasty way to teach your kiddos at home.

Skittles Rainbow Experiment edible science by Salt Lake party stylist

Candy Science Experiment Supplies

M7Ms, Gobstoppers, Mentos, and Skittles Rainbow experiment on table
  • Choose candies with a hard colorful coating.
    • Skittles
    • M&Ms
    • Mentos
    • Gobstoppers
    • Sprees
  • White plates
  • Water
  • Timer

Skittles Rainbow Experiment Set Up

Before photos of candy science experiment

To get your experiment set up you'll want a white background, like a plate. Arrange your candies in a color pattern. Rainbow color orders give the prettiest outcome but you can play around with others as well.

  • M&Ms: Laid out in repeating rainbows
  • Fruit Mentos: Alternating colors
  • Skittles: Instead of a Skittle rainbow my kids wanted to see how the warm and cool colors would work together. We had WAY less green ones to work with.
  • Gobstoppers: Single candy and rainbow plate

Candy Rainbow Experiment

First record your hypothesis. What do you think is going to happen?

  • Which candy color will move fastest?
  • Which will be brightest?
  • How long will the rainbow stay intact before mixing?
  • What do you expect to see?

Add Water and Watch the Rainbow

Once you have your candies set up on plates, slowly add a little water to the center of each, making sure the water reaches the candy but doesn't submerge it.


Plate of M&M Candies in water and candy rainbow experiment

Does the waxy chocolate affect the dissolving shell? What happens to the chocolate in water? How long will the color rainbow stay intact before mixing?


Skittles rainbow experiment by Salt Lake Party stylist

How quickly does the color run? Do any colors move faster than others? How is the candy center affected by the water?


The Gobstoppers were interesting. knowing they are made up of different layers of color we hoped to create a ring of colors using a single piece of candy on the plate.

A little disappointing in the multiple color results, we tried them in a full ring and they performed much better! Turns out there's only 2 colors in the Gobstoppers now.

Candy Rainbow Scientific Review

AFTER photos of candy science by Salt Lake party stylist

After you've recorded the progress over a 5 minute period, come back and see what's become of the candy itself.

  • How much has dissolved in the water?
  • How much color still remains? Has it blended or it is still a distinct rainbow?
  • Are colors created that weren't originally there?
  • Is the candy still edible?

Candy Science Is Colorful

Would you enjoy making a few candy rainbows at home? Which candy will you choose and how will you decide to arrange them? The big question is after your Skittles rainbow experiment are you going to EAT it?

If you try it at home, please share and tag us @partieswithacause on FacebookInstagram, and Pinterest. We love seeing all your hard work! 

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Skittles Rainbow Experiment edible science by Salt Lake party stylist

Summer Camp Activities: Week 5

Experiment with Science during our at-home summer camp and keep your kids busy most of the summer! We’ve got 6 weeks worth of crafts, activities, snack ideas, exercise recommendations, books suggestions, and even themed tv show and movie ideas.


Join us each week for NEW summer camp ideas! Get a whole weeks worth of activity ideas sent straight to your inbox each week. Sign up here and receive a free printable Summer Adventure Field Guide!

You can also join the Facebook Group below to see a daily schedule and tons of ideas!

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Did you miss DINOSAUR WEEK?

Check out the Dinosaur Activity Ideas

And Dinosaur Food Ideas

Did you miss SPACE WEEK?

Check out the Space Activity Ideas

And Space Food Ideas

Did you miss NATURE WEEK?

Check out the Nature Activities

And Nature Food Ideas


Check out the Travel Activities

And Travel Food Ideas

Up next….Week 6: UNDER THE SEA

From The Shop


    • Brianna Adams

      We’ve had a lot of fun our leftover candy this quarantine. Thank you so much. I try to be cool. 🙂

  1. Natalie Mayhew

    I want to come visit your house, you do the coolest things! Love this simple and fun idea! With candy!!!!!! Winner

    • Brianna Adams

      You are welcome any time! We try and have lots of fun around here. They really loved this one especially since they got to eat a few of the extras.


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Gingerbread houses in a row as table runner centerpiece for a Christmas Cookie Exchange Party I’m Bri of Parties With A Cause. I’m a mother to three crazy awesome kids, interior designer, & party planning junky. I love reading, globe trotting, and frozen yogurt. And I’m elevating the party experience one cause at a time! Read More

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If you're ready to improve your lifestyle and the health of your family, join me in the "Healthy Hostess" movement. Where we serve great food to the people we love. With food that nourishes the body and events that feed the soul. Use this food subtitution list to plan more intentional holidays and gatherings. Collect healthier recipes, less stuff, and more meaningful memories, with me at Parties With A Cause. 

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