If 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
- 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 warm 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.
STEP6 – 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?