This simple experiment is a fun learning activity. Combining vinegar and bicarb makes all sorts of oozing, bubbling reactions.


What you'll need:

  • A muffin tin or 4 cups
  • Teaspoon 
  • 4 large tablespoons of bicarb soda or baking powder
  • 1 cup white vinegar
  • Food colouring. Preferblly 4 different colours
  • A tray or newspaper to catch the liquid and prevent mess


Lets get started:

  1. Start by half-filling each muffin cup with vinegar.
  2. Put one drop of each food colouring into different cups.
  3. Add 1 heaped teaspoon of bicarb soda or baking powder into each cup and watch the colours fizz and flow over the muffin tin.


How it Works:

A chemical reaction between vinegar and baking soda creates a gas called carbon dioxide. Carbon dioxide is the same type of gas used to make the carbonation in fizzy drinks.

What happens if you shake up a can of soda? The gas gets very excited and tries to spread out and overflows.


Volcano Experiment

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