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 use 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.
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.
- 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 SetPlastic 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 Laboratory
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.
Lay globs of red onto the sheet forming an ark.
Line each color in order under the ark before touching the colors to each other.
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.
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.
Encourage children to touch the fizzy rainbow.