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:
	
Start by half-filling each muffin cup with vinegar.
	
Put one drop of each food colouring into different cups.
	
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.