Fizzy Chalk Fireworks: The Science of Homemade Fizzy Sidewalk Chalk Paint
Submitted by Liz Baill on
Bring some snap, crackle, and fizz to your 4th of July festivities—without the fire hazard—by making colorful, homemade fizzy chalk fireworks. This STEM activity adds some sizzle to your summertime sidewalk chalk using just a few basic ingredients: baking soda, cornstarch, food coloring, and vinegar. And if being festive and educational isn’t enough, note that this project kept my kids busy for a solid 45 minutes. So occupy the littles while you fire up the barbecue and watch them delight in their bubbly explosions that are fit for the 4th.
For more science fun, check out our 64 favorite science experiments for kids or these super simple science activities for preschoolers. All this and more can be found in our Guide to Science Experiments for Kids.