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!)
- Wooden Spoon
- 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?