Ice Volcanoes

icevolcanoes-1-setupIf the weather is getting a bit warm for you how about we cool everything down with an Ice Volcano! Oh, and learn a thing or two about chemical reactions

What do I need?

  •  Baking powder
  • White vinegar
  • Food colouring
  • Bowl
  • icevolcanoes-2-iceGlasses
  • Plate
  • Pipette (optional)

How do I do it?

STEP1 – Our first step is to build our Ice Volcano. Take a container of baking powder (approx 150g) and mix together with some warm water in a bowl.

STEP2 – Keep mixing your baking powder and icevolcanoes-3-readywarm water together until most of the baking powder has dissolved.

STEP3 – Let’s freeze our Ice Volcano! Gently place your bowl full of water mixed with baking powder in the freezer and leave overnight.

STEP4 – Take the Ice Volcano out of the freezer and let it warm up for 5 minutes before turning it over onto a plate.

STEP5 – Use different food colourings to colour our white vinegar.

icevolcanoes-4-fizzSTEP6 – Eruption! Add the coloured vinegar to your Ice Volcano and witness the eruption!

What’s going on?

Your Ice Volcano is a perfect example of the classic acid + base reaction. As our Ice Volcano is made from baking powder it is a base (or alkali!). The vinegar that we add is an acid. When we mix the acid and the base (vinegar and baking powder) we get a chemical reaction. Those bubbles that you can see are bubbles of carbon dioxide.

More Fun Please! - Experiment like a real scientist!

  • What’s the perfect quantity of baking powder to make the most active Ice Volcano?
  • What could you use instead of white vinegar to trigger your volcano?
  • Try using regular brown vinegar or some lemon juice on your Ice Volcano. What difference does that make?

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