top of page

Make a Rainbow 🌈 Fun Science!

Hello, young scientists! We would like to share an exciting experiment that will bring the beauty of a rainbow right into your home. You don't need much just a glass of water, a white piece of paper, and some sunshine. Get ready to create your very own rainbow!


  • Easy


1. A white sheet of paper

2. A glass of water (clear is best)

3. Sunshine or a strong light source (ask an adult for help)

4. A flat surface to work on


1. Find a Sunny Spot

Look for a place where the sun is shining brightly. If it's not sunny outside, you can use a strong lamp or flashlight indoors.

2. Get Your Stuff Ready

Put your glass of water on a smooth table or any flat surface. Make sure the glass is clean and filled up to the top.

3. Put the Paper in Place

Now, place your white paper on the table, but it should be on the opposite side of the glass from where the sunlight or light is coming from. We want the light to go through the water and onto the paper.

4. Tilt the Glass

Carefully tip the glass slightly, so the sunlight goes through it and onto the paper. You might need to ask an adult for help with this part.

5. Watch the Magic Happen

As the light goes through the water in the glass and touches the paper, something amazing will start to happen. You'll see a rainbow! It'll have all the colors just like a real rainbow – red, orange, yellow, green, blue, indigo, and violet.


Before we start, let's learn a bit about rainbows. Rainbows happen when sunlight bends and reflects inside tiny water drops in the air. This bending makes all the beautiful colors in a rainbow spread out like a smile in the sky. In our experiment, we'll use a glass of water to do the same thing!

In conclusion, making a rainbow with a glass of water and paper is like creating your own piece of magic. It's a fun way to learn about colors and light while having a blast. So, on a sunny day or a bright one indoors, gather your materials and bring the wonder of rainbows to your home. Enjoy the beautiful colors, and remember, you can always find a rainbow if you have sunshine and a little bit of science!


  • Adult supervision required for any of these activities. Please supervise and make sure children participating are safe. Read instructions and the safety labels from each used materials.


  • This blog post may contain affiliate links for your convenience. I may receive a commission for purchase made through links in this post.



bottom of page