17 minutes | Jul 2, 2021

How do Fireworks explode into Smiley Faces?

Who invented Fireworks? How are Fireworks able to make so many cool colors and shapes? Why do we set off Fireworks on July 4th? For free home activities sign-up at www.WhoSmarted.comSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.
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