• Planet Bath Bombs

    1. Grades 3-5
    2. Grades 6-8

    $19.954.6

    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

    1. Just add water

      Everything you need to make four multicolored bath bombs.

    2. Planetary fun

      Create bath bombs inspired by real-life and make-believe planets.

    3. 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

    1. Chemical reactions

    2. Mixing colors

    3. Planetary layers

    From the desk of the product designer:

    Behind the design

    “We wanted to make the bath bomb experience more educational. Now kids can learn about the anatomy of a planet while making their bath bombs, from core to crust!”

    - KiwiCo Product Designer

    By the numbers

    67

    Planets created during testing

    51

    Planets cut open

    4

    Test baths

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