Fizzy Elf Laboratory

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

All you need is baking soda, vinegar and food colouring!

You might also like our ELF STEM Challenges where you can build a new shelf for the elf, make a parachute for an elf and lots more!

Fizzy Elf Laboratory

What you’ll need:

Test tubes or containers

Test tube holder

Baking soda ( bicarbonate of soda )

Vinegar

Red and green food colouring

Eco glitter – optional

Funnel

Safety note:

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

Set up an 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 eco glitter.

Give them all a good stir.

Get ready for the fizz

Add a few drops of vinegar to each test tube and watch them 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. The carbon dioxide bubbles mixed with the food colouring makes a lovely foam!

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 Experiment Instructions

Grab the free experiment printable here.

More Elf Experiments for Kids

Help the Elves find the jingle bells in snowy shaving foam. This is a lovely fine motor activity for little ones.

The elves want to find our what happens to candy canes placed in different liquids. Help them find out with this easy dissolving candy cane activity.

Help the elves build a super strong gingerbread house for Santa.

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