We love baking soda volcanoes, especially our snow volcano, but as we’ve not had much snow recently, I’ve started making them again. This method is quick, inexpensive, and allows you to reuse the volcano a few times.
A volcano is a fantastic science project for school or home, and it only requires a few basic materials.
We used mod roc to make this volcano, but a papier mache volcano works just as well.
Three reasons why you should make a baking soda volcano
- It’s a great way to learn about chemical reactions. Baking soda and vinegar react to create a wonderful fizz. Adding a little washing-up liquid( dish soap ) and red food colouring gives you a thick, fizzy foam that looks a bit like lava.
- Kids can use the opportunity to learn about the different types and shapes of volcanoes around the world.
- A baking soda and vinegar reaction volcano is a classic science experiment every kid should try at least once.
How to make a Reusable volcano
You’ll need
Cardboard
Glue
Brown, red, green and yellow paint
Art roc or mod roc
Water
Newspaper
Small plastic bottle
Baking Soda
Vinegar
Red food colouring
Cling Film.
Baking soda volcano instructions
Place your bottle or container on a sheet of cardboard, roll the newspaper around it, and sellotape it in a volcano shape.
Cover with mod roc or art roc and leave to dry.
Once dry, the modroc should be very hard. Paint and leave to dry again.
Cover the volcano with cling film or paint over the top with PVA glue, and you’re ready to go.
Follow my snow volcano instructions to make the eruption!
When you’re finished, remove the clingfilm, leave to dry and start again.
More volcano ideas
Make a volcano using sand!
Or, if you don’t want to make your own volcano, Learning Resources has a fantastic plastic volcano model.
Last Updated on February 19, 2025 by Emma Vanstone
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