This is an acid/base experiment that ends up getting a little messy! We mix baking soda and vinegar to find the hidden colours underneath. We used plastic eggs to make it an Easter activity.
We started by finding our materials.
- Plastic eggs
- Ice cube tray
- mat to catch any overflow (we used a plastic tub)
- baking soda
- food colouring
- vinegar
- bottle
I laid the plastic eggs in the ice cube tray holes to hold them upright.
I inserted different colours into the eggs first. The surprise of finding the colour was fun!
Next, I put the baking soda on top of the colours so my daughter couldn’t see.
She took the bottle of vinegar and sprayed it into the eggs to find the different colours! The fresher the ingredients, the more they’ll fizz up.
My daughter still asks for this activity again and again. For older kids you can explain more about the chemical reaction and how they interact. My 3yo really liked the colours and magic of it.
Planet Plan-it! 