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Fizzy Rainbow Science

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

fizzy rainbow science

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.

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.

Ingredients

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

  • 3 cups baking soda
  • 6 colors of tube watercolor paint (red, orange, yellow, green, blue, purple)
  • about 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

Sakura 15262 18-Piece Koi Assorted Water Color Tube SetSakura 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 Mercantile ...Plastic Squeeze Condiment Bottles with Red Tip Cap 16-ounce Set of 6 Wide Mouth by Pinnacle Mercantile …Plastic Squeeze Condiment Bottles with Red Tip Cap 16-ounce Set of 6 Wide Mouth by Pinnacle Mercantile ...100pcs 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 Laboratory100pcs 3ML Plastic Disposable Transfer Pipettes - Eye Dropper Set Transfer Graduated Pipettes Calibrated Dropper for Essential Oils & Science Laboratory

 

fizzy rainbow science activity
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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
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Lay globs of red onto the sheet forming an ark.

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

making a rainbow
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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.

rainbow science
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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
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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.

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

My fizzy science activities

Fizzy Treasure Rocks

Rainbow Foam Dough

Rainbow Slime Recipe

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