Every 4th of July, we have fun making Fireworks in a Jar. Some call it an art project; others say it’s a science experiment. Whichever way you view it, this is truly one of the quickest and easiest activities of all time because you only need oil, water, a jar or glass, and food coloring. 

Using red and blue food coloring makes it more festive, but anything you have on hand is fine. Little kids—and big ones!—will find it delightful.