Science for Kids - Rainbow Eruptions
If your kids are anything like mine, they never tire of the baking soda and vinegar experiment. Any science for kids that produces an eruption is at the top of the list of favorites around here. We've been on a rainbow kick lately with rainbow slime, rainbow paintings with marshmallows, and rainbow flour paint, and next up on the list is rainbow eruptions! We did use baking soda and vinegar, but we also made vinegar free rainbow eruptions.
How to Make Vinegar Free Rainbow Eruptions
Directions: I put one packet of Kool Aid in each container then covered with a heaping spoonful of baking soda. I added yellow food coloring to the yellow Kool Aid since it never turns out very bright. I used yellow and blue Kool Aid to make the green, and I also added a couple drops of green food coloring. I added a couple drops of blue food coloring to purple Kool Aid for indigo and used only the Kool Aid for violet.
I gave the boys each a squeezy bottle full of water and instructed them to start squirting on my cue. *Please note* Vinegar is not needed to make eruptions with Kool Aid and baking soda since Kool Aid contains citric acid.
I was every bit as dazzled by the results as my kids!
The Kool Aid and baking soda fizzed all over again each time one of them squirted more water into the containers.
Once the fizzing died down they poured all the colors into each other resulting in a muddy brown.
After all the water was gone and the colors were mixed the boys refilled their squeeze bottles again and again to extend the activity.
Baking Soda and Vinegar Rainbow Eruptions
We had so much fun making rainbow eruptions that the boys requested to do it again the next day. This time we used baking soda and vinegar. I squirted a small amount of liquid watercolor paint into the containers then covered it with baking soda, concealing the color. This time I filled the squeezy bottles with vinegar.
For more rainbow recipes for play follow me on Pinterest.
More erupting science for kids: