Mix together citric acid, baking soda, cornstarch, and food coloring to make a variety of colorful bath bomb powders. Use a set of molds to shape the powders into multi-layered bath bombs inspired by the layers of the Earth. Then drop your bath bombs into the water to see a frothy, fizzy chemical reaction!
Learn about chemistry and design out-of-this-world bath bombs! Mix together citric acid, baking soda, cornstarch, and food coloring to make your bath bomb base before pressing into molds. Smush and sprinkle the colors on top of each other to create planetary layers before dropping them in the bath and watching them fizz!
Why it’s awesome
Just add water
Everything you need to make four multicolored bath bombs.
Planetary fun
Create bath bombs inspired by real-life and make-believe planets.
Fizzy chemistry
Experiment with scents, colors, and more to make custom bath bombs.
What’s included?
baking soda 5 oz (144g)
citric acid 2.5 oz (73g)
cornstarch 2.5 oz (73g)
Epsom salt 2.5 oz (73g)
olive oil 0.6 fl oz (18 ml)
3 food coloring bottles, each 0.17 fl oz (5ml)
spray bottle
3 paper bowls
6 molds
mess mat
tube
gloves
illustrated instruction booklet
Topics explored
Chemical reactions
Mixing colors
Planetary layers
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