With school holidays fast approaching, I thought it was a great idea to get all of our experiments loaded up! Dancing Popcorn has been a fave in our house for the last few years and it is one Izzy always wants to do when we’ve finished up homeschool for the day.
Dancing Popcorn is an awesome wee chemistry experiment that uses basic pantry ingredients and will keep the kiddos entertained for a wee while. As you probably know, when baking soda and vinegar mix, it creates a chemical reaction which produces carbon dioxide. Because carbon dioxide is a gas, some of the CO2 bubbles which have been produced, will stick to the outside of the popcorn.
Gas bubbles and popcorn kernels mix, they are less denser than water which causes them to rise to the surface. Once they get to the top, the gas bubbles pop which release CO2 into the air. The popcorn kernel becomes denser than water and it floats back to the bottom again. More CO2 bubbles attach themselves to the kernel and the process begins all over again.
Once the CO2 really gets going, it looks like the kernels are dancing inside the glass hence why the experiment is called Dancing Popcorn!
What you’ll need
– a glass
– white vinegar
– baking soda
– popcorn kernels or raisins
– a tray
What to do
– Grab your glass and half fill it with water.
– Top it up with white vinegar, add in a couple of popcorn kernels and pop it on the tray.
– Add in a teaspoon of baking soda and wait for the magic to happen!