Making Rainbows ~ Science Series

We tried some science experiments these past weeks that the kids loved. We made rainbows with paper towels and celery!

Paper Towel Rainbows


First we got down seven glasses, four of which we fill half-full with water. We added food coloring to those half-filled glasses, two with red, one yellow, and the other blue.

Then folded up paper towels and placed them in both the colored glass and the empty one next to it.

This experiment takes a long time (about 24 hours), so you’ll need to find another activity as the water gradually gets absorbed up the paper towel.

The next day, we started to see the colors start to mix as they came out of one glass and went into the other.

One beautifully colored rainbow!

Celery Rainbows


We also decided to experiment with celery. So we placed a stalk in a fresh cup and added food coloring.

The one at the end was a surprise color. I believe it came out dark greenish red.

The kids got to see not only the rainbow, but how water flows through a plant, like celery,

through the veins

and into the leaves.

See our other Science Series units:
Making Rainbows
Caterpillars to Butterflies
Dinosaurs
Looking Inside The Earth with Playdoh
Nature Walks
Animal Classification
Tsunamis

Author: Olivia

I am a mom and a homeschooling teacher of two little ones. I am also a Biblical Studies major with a hobby in Creation Science. I love to research Biblical topics and how science and the Bible live in harmony with each other. I learn beside my children when we read, build, and explore with the help of our glorious classroom - God's green Earth!

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