Fizzy Elf Laboratory

We’ve been having more Elf themed science fun this week with this Fizzy Elf Laboratory.

fizzy elf lab

Fizzy Elf Laboratory

What you’ll need:

Test tubes

Test tube holder

Baking Soda ( Bicarbonate of Soda )


Red and Green food colouring

Glitter – optional


Safety note:

Children should wear safety goggles to prevent vinegar getting in little eyes.

Fizzy Elf Lab


Use a funnel to neatly add a teaspoon of baking soda to each test tube.

Add a few drops of food colouring and some glitter.

Get ready for the fizz

Add a few drops of vinegar to each test tube and watch it fizz!!

Why does this happen?

Vinegar (an acid) and bicarbonate of soda ( an alkali ) react together to neutralise each other. This reaction releases carbon dioxide, a gas, which is the bubbles you see, this mixed with the food colouring makes a lovely foam!

fizzy elf lab

Extension tasks

What could you add to make the foam thicker?

What happens if you use more or less baking soda?

Why does this happen?

FREE Printable

Download our free experiment printable here. Fizzy Elf Lab Instructions

More Elf Experiments

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Contains affilate links

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