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Kitchen Science

Volcano in a Mug

This quick kitchen science activity is perfect when a child wants something exciting right now. It introduces basic acid-base reactions without turning your whole counter into a disaster zone.

Ages 3–10 10 min Easy Low mess
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Volcano in a Mug

What you'll need

Supplies for this activity

Chances are most of it is already in your craft drawer or kitchen.

6 items

  • Mug or small bowl

  • Baking soda

    2–3 spoonfuls

  • White vinegar

    a small splash cup

  • Dish soap

    optional for extra foam

  • Food coloring

    optional

  • Tray or plate to catch overflow

Step by step

Let's make it

  1. 1

    Set up the volcano

    Put the mug on a tray or plate so any overflow stays contained.

    Craft Coach tip

    Do this near the sink if you want zero stress cleanup.

  2. 2

    Add the dry ingredient

    Scoop baking soda into the mug.

    Craft Coach tip

    Let your child do the scooping — it is half the fun.

  3. 3

    Make it dramatic

    Add one drop of food coloring and a little dish soap if you want a taller, bubblier eruption.

    Craft Coach tip

    Red or orange looks especially volcanic.

  4. 4

    Trigger the eruption

    Pour in vinegar and watch the foam race upward.

    Craft Coach tip

    Count down together before pouring for extra suspense.

  5. 5

    Talk about the science

    Explain that the baking soda and vinegar react and make a gas that creates the fizz.

    Craft Coach tip

    Short explanation beats lecture mode here.

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