22 June 2013
The volcano experiment
KS3 students at our Huddersfield tuition centre perform a science experiment using a volcano made from dough (flour and water) and then filled with baking soda (sodium bicarbonate) to which vinegar (acetic acid) was added.
The baking soda is a base while the vinegar is an acid. When combined they react together to form carbonic acid, which is very unstable and instantly breaks up in to water and carbon dioxide creating all the fizzing as it escapes the solution. Super!
CH3COOH + NaHCO3 –> NaCH3COO + CO2 + H2O
Acetic acid + Sodium bicarbonate –> Sodium acetate + Carbon dioxide + Water
You can try this experiment at home if you like, but make sure you get permission from an adult and ask them to help you.
What you’ll need:
1. Baking Soda (make sure it’s not baking powder).
3. A container to hold everything and avoid a big mess!
4. Paper towels or a cloth (just in case).
1. Place some of the baking soda into your container.
2. Pour in some of the vinegar.
3. Watch as the reaction takes place!