Cut the neck off of the top of the water bottle.

Place the water bottle on the location where the eruption will occur.  I used a jelly roll pan and covered it in foil first for easy clean up but you can also do this experiment outside so clean up is even easier!

Put the water, baking soda, dish soap and food coloring of your choice in the water bottle.  Gently mix these ingredients so that they are combined.

Next have the kids gather around the water bottle to get ready for the experiment.

Next, use a separate cup to add the vinegar to the water bottle ingredients and watch the eruption that occurred.

This experiment is quick and easy that the kids can easily take turns creating their own.

Enjoy!