We had fun this week doing a few different kinds of rainbow science. We were exploring how paper towels absorb water and seeing a rainbow of colors! The kids loved doing these simple experiments. They learned all about colors and absorption. We did two different experiments at the same time- both are very simple and require only things you’ll already have in your home.
Rainbow Science: Walking Water
The first experiment is just a few cups of colored water and paper towels. It is often called walking water. We started with 6 plastic cups (but later added in a 7th) Two of the cups had blue water, tinted with food coloring, one was red and one was yellow. Then you will need 3 empty plastic cups. It is nice to have clear ones so you can watch the process.
The water will begin soaking up the paper towel and into the empty cups mixing the two colors together and making a secondary color. It takes a VERY long time, so tell your kids that this is something you will be watching all day long.
Rainbow Science: Absorption
In a plastic container- I used a small clear plastic storage bin, but you could use a bowl, or whatever you have on hand- put a small amount of water, enough to just reach the bottom of the paper towel. You don’t want the water level to reach the colors on your paper towel or it will make a swirly mess of colors. Believe me, we did that first. Place the paper towel into the water- just hang it over the edge.
The water soaks up the paper towel bringing all of the colors with it making a wonderful rainbow. My daughter who loves painting and colors was just so excited about this. She thought it was beautiful!!