Snow Volcano – Baking Soda Volcano

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

I placed a small glass jar in the centre, with the top level with the top of the snow.

How to make a snow volcano

What you need

2 spoonfuls of baking soda (bicarbonate of soda )

1 spoonful washing up liquid

a few drops of red food colouring

30 ml vinegar


Add everything except the vinegar to the water bottle.

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.

I loved how easy this was to make and how great the red looked against the snow!


Baking soda volcano


What do you think of our Baking Soda Volcano?

The Science bit

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.

multicoloured volcano eruption

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  1. Volcano Experiment | Dragons and Dragonflies

    […] To start, I did a bit of researching on how to best make the best volcano.  I read many online tutorials and picked and chose elements of each to create our own.  You can find a few resources here, here, and here.  You can make your volcano out of many different materials.  Clay or salt dough, chicken wire, paper mache (our choice), or even snow! […]

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