Fizzy Rainbow Science

The kids are going to love this Fizzy Rainbow Science activity! It’s a super fun way to create and learn at the same time!

How can we head into March and not start thinking about rainbows? With all this snow, it’s the only hope I have for warmer weather. At least our days are longer with sunlight. It used to get depressingly dark at 5 pm which makes the winter days long. Rainbows are full of color with bright warm days ahead.

This fizzy rainbow science activity fun will guarantee squeals of laughter and a great amount of fun. Watch their faces lighten up when they see what happens to their beautiful rainbow.

If you love this activity, see more Colorful Rainbow Activities for Kids.

fizzy rainbow science

This post may contain affiliate links meaning I get commissions for purchases made through links in this post. Read my disclosure policy here.

Fizzy Rainbow Science

The cool thing about this rainbow science activity is that it really does showcase a rainbow! Not only that but it’s one that is simple but fun enough to keep the kids attention the entire time, too.

And for more fizzy science, don’t forget to check out other Fizzy Experiments Your Kids Will Love.

What colors are in a rainbow?

Do you know all of the colors that are found in a rainbow and what order they appear? Yes, each of the colors will always appear in the same order.

I learned this cool acronym in the 6th grade that helped me remember the colors of the rainbow and I never forgot it.

ROY G. BIV

It sounds like a man’s name but I promise that it will help.

Red, orange, yellow, green, blue, indigo and violet.

Right? So easy to remember the colors of the rainbow now.

Thank you very much.

Recommended Rainbow Books for Kids

A great way to introduce this activity to your kids is to catch their interest in the colors of the rainbow first. Have fun reading these awesome books with your kids and let them appreciate the activity more.

How the Crayons Saved the Rainbow (1)How the Crayons Saved the Rainbow (1)Rainbow, Rainbow In The SkyRainbow, Rainbow In The SkyA Rainbow of My OwnA Rainbow of My OwnCurious George Discovers The Rainbow (science Storybook)Curious George Discovers The Rainbow (science Storybook)I Can Eat a Rainbow (Children's Book Collection)I Can Eat a Rainbow (Children’s Book Collection)All About Weather: A First Weather Book for KidsAll About Weather: A First Weather Book for Kids

 

Ingredients

All you need to do this rainbow science are listed below.

Sakura 15262 18-Piece Koi Assorted Water Color Tube SetSakura 15262 18-Piece Koi Assorted Water Color Tube SetPlastic Squeeze Condiment Bottles with Red Tip Cap 16-ounce Set of 6 Wide Mouth by Pinnacle MercantilePlastic Squeeze Condiment Bottles with Red Tip Cap 16-ounce Set of 6 Wide Mouth by Pinnacle Mercantile100pcs 3ML Plastic Disposable Transfer Pipettes - Eye Dropper Set Transfer Graduated Pipettes Calibrated Dropper for Essential Oils & Science Laboratory100pcs 3ML Plastic Disposable Transfer Pipettes – Eye Dropper Set Transfer Graduated Pipettes Calibrated Dropper for Essential Oils & Science Laboratory

 

fizzy rainbow science activity

Fizzy Rainbow Directions

Mix a squirt of watercolor paint, and enough water to blend the color into 1/2 cup baking soda until the color is smooth.

fizzy rainbow science activity

Lay globs of red onto the sheet forming an ark.

science rainbow

Line each color in order under the ark before touching the colors to each other.

making a rainbow

Lay paper towel over the top of the rainbow to dry excess liquid. You can do this the night before to allow it time to dry for more fizz.

Recommended Rainbow Activity Kits for Kids

Can’t get enough of colors? These rainbow activity kits are a perfect addition to your kid’s homeschool crafts or experiments. Kids will definitely have a wonderful experience with these!

Science to the Max Rainbow Snow- Super Snow Powder- Create 2 Gallon of Colorful and Reusable SnowScience to the Max Rainbow Snow- Super Snow Powder- Create 2 Gallon of Colorful and Reusable SnowPlayz Explosive Rainbow Volcano Kit for Kids with 23+ Science Chemistry Set Activities & ExperimentsPlayz Explosive Rainbow Volcano Kit for Kids with 23+ Science Chemistry Set Activities & ExperimentsThe Magic School Bus: The Mysteries of RainbowsThe Magic School Bus: The Mysteries of RainbowsPlayMonster Science4you -- Chasing Rainbows -- 13 Experiments to Explore The World of Colors -- Fun, Education Activity for Kids Ages 4+PlayMonster Science4you — Chasing Rainbows — 13 Experiments to Explore The World of Colors — Fun, Education Activity for Kids Ages 4+Thames & Kosmos Yummy Rainbow Lip Balm Lab STEM Kit | Make Lip Balms & Glosses in a Rainbow of ColorsThames & Kosmos Yummy Rainbow Lip Balm Lab STEM Kit | Make Lip Balms & Glosses in a Rainbow of ColorsKlutz DIY Rainbow Catcher: Maker Lab STEM KitKlutz DIY Rainbow Catcher: Maker Lab STEM Kit

 

rainbow science

Have your children pour vinegar over the rainbow and watch it fizz.

Ask them what they think about the chemical reaction, what they observe with the colors and what they think will be left when it is over. Hint: everything is light brown.

fun science activity for kids

Recommended Rainbow Crafts for Kids

Try these lovely rainbow crafts that kids will love! On the left is a Rainbow Craft Kit for young kids, including Rainbow Skittle Science Experiment, Traveling Rainbow Science Experiment, Tissue Paper Rainbow Heart, and more! On the right is a Mosaic Mini Rainbow Craft Kit that’s perfect for older kids.

Encourage children to touch the fizzy rainbow. This can easily be a fun STEM activity as well as a sensory one as well.

Once the experiment is done, talk to them about their thoughts and what they saw happen. Did they think it was going to happen that way or were they expecting something different? It’s always fun to talk to the kids about what really happened versus what they thought would happen.

This will also teach them observation skills as well which are great skills to have throughout life.

Fizzy Rainbow Science

Fizzy Rainbow Science

A fizzy science experiment and a cool way to teach kids about the colors of the rainbow.

Materials

  • 3 cups baking soda
  • 6 colors of tube watercolor paint (red, orange, yellow, green, blue, purple)
  • 6 oz water
  • 1-2 cups vinegar
  • Squirt bottle, medicine droppers, or spoons
  • a large tray or cookie sheet
  • Flour sack towel or paper towel

Instructions

  1. Blend watercolor paint and water then add the mixture to 1/2 cup of baking soda until the color is smooth.
  2. Repeat the first step for each of the watercolor paint.
  3. Make an ark by laying globs of red onto the sheet. This will be the top of your rainbow so make sure you have enough space for the rest of the colors.
  4. Continue laying the remaining colors but line them up before touching the colors to each other.
  5. Dry excess liquid by laying a paper towel on top of your rainbow. You can do this the night before the experiment for a drier and fizzier result.
  6. Watch the rainbow fizz as you pour some vinegar over it using a dropper, squirt bottle, or a spoon.

Have fun with this Fizzy Rainbow Science – it’s a really cool experiment for the kids to easily do at home.

More Rainbow Activities

Fun Rainbow Ice Activity

Rainbow Pop and Mentos Experiment

Rainbow Slime Recipe

Rainbow Foam Dough

Watercolor Rainbow Process Art by 3 Dinosaurs

More Fizzy Science Activities

Fizzy Treasure Rocks

Fun Fizzy Apple Volcano Science Experiment

Fizzy Pumpkin Science Experiment

Fizzing Rainbow Experiment for Little Scientists by STEAMsational

Leave a Reply

Your email address will not be published. Required fields are marked *