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Snow Volcano

Try this nifty science experiment and make a volcano in the snow!

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  • What supplies do you need for this activity? 
  • Has anyone ever made a baking soda and vinegar volcano before? 
  • What do you think will happen when you add vinegar to your volcano? 
  • Will you make your volcano in a pair, a small team or as a big group? 


  • Take a plastic cup or bottle. Add 1 tablespoon of dish soap, then fill the cup halfway with baking soda. Add ¼ cup of warm water and mix. If you want to add a pop of colour to your volcano, add a couple of drops of food colouring. 
  • Place your cup in the snow and form your volcano around it. You’ll want to build it high enough that the cup can’t be seen. Make sure you leave a hole in the top for the lava! 
  • When you’re happy with your volcano, add the vinegar into the top and watch it erupt! You can repeat the eruption by adding more baking soda and vinegar.  


  • What happened when you added vinegar to the baking soda mix? Is that what you thought would happen? 
  • What happens when you change the amounts of baking soda, dish soap and vinegar? 
  • Do you know what caused the reaction? 


  • Snow 
  • Plastic cup or bottle 
  • Vinegar 
  • Baking soda 
  • Dish soap 
  • Warm water 
  • Food colouring  

Keep it Simple

  • You can build a volcano without making it erupt! Try building a snow volcano, leaving a hole where you would normally put the baking soda mixture. What else could you use to make it look like your volcano is erupting? 

Take it Further