We gathered up the last remaining bits of snow this afternoon to make a Baking Soda Volcano using snow!

We piled up a heap of snow around a small glass jar, making the top of the snow level with the top of the jar, added the ingredients for the baking soda and vinegar reaction and stood back to watch the snow volcano erupt!

Snow Volcano - multicoloured snow volcano

How to make a snow volcano

What you need to make a baking soda volcano eruption

2 spoonfuls of baking soda (bicarbonate of soda )

1 spoonful washing up liquid ( dish soap )

a few drops of red food colouring

30 ml vinegar


Small container

Snow Volcano materials - everything you need to make a snow volcano

How to make a snow volcano using baking soda and vinegar

Add everything except the vinegar to the container.

Carefully shape a volcano shape around the container using snow.

Stand back, get ready……add the vinegar and watch the eruption! If it doesn’t work so well, add a bit more washing up liquid and vinegar and give it a good stir.

I loved how easy this was to make and how great the red looked against the snow! It was also super easy to clean up,

Baking soda volcano made with snow

What do you think of our Baking Soda Volcano?

Extension Task

Can you make  a different coloured snow volcano?

Colourful Snow Volcanoes

FREE Snow Volcano Printable Instructions

Download a free snow volcano instruction sheet.

Baking soda snow volcano instruction sheet

How does a baking soda volcano work?

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, these bubbles make the washing up liquid bubble up to give the reaction shown above.

You could also try making a multi-coloured snow volcano. To do this we used thick card to divide the central container in half and added yellow food colouring to one half and red food colouring to the other half.

multicoloured volcano eruption

More experiments using baking soda

Don’t forget to try some of our other easy Baking Soda Experiments

Baking Soda Experiments for kids

Make a fizzy monster Tea Party

Design and build a baking soda powered boat.

Hide small items inside fizzy baking soda rocks!

Find out how to make an erupting snow volcano and more baking soda science experiments for kids. #bakingsodaexperiments #scienceforkids #chemistryforkids #winterscience #winterexperiments #snowactivitiesforkids

This post was first published on 21st Jan 2013. Updated 3rd Feb 2019

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The post Snow Volcano – Baking Soda Volcano appeared first on Science Experiments for Kids.

Originally posted at Science Sparks