It’s been rather cold here at Fun Science recently! We have decided to beat the chill by making our own snow that doesn’t make your hands cold and is a bit more exciting – erupting snow! It’s fun, messy and easy to do at home!
You will need:
Bicarbonate of Soda
Shampoo/conditioner (supermarket own brand will be fine!)
Put 1 cup of bicarbonate of soda into the bowl.
Add 1/2 cup of shampoo and mix.
If the mixture is too wet, add more bicarb and if it is too dry, add more shampoo.
Build something out of your snow!
When you have finished building, take 1/2 a cup of vinegar and pour it onto the ‘snow’ and watch it erupt!
The Science Bit:
Bicarbonate of soda is an alkali and vinegar is an acid, that acids and alkalis are opposites! When they mix they create a chemical reaction, in this case it creates bubbles of carbon dioxide gas. The shampoo just makes it extra foamy!
Why not try:
Adding some food colouring to make rainbow snow!
Try changing the measurements to see if it affects the reaction!
Are there any other alkalis / acids you could use?