In science, we were learning about making bath bombs during our science elective, I succeeded to make one and it turned out great! We had to make sure we didn't have more than enough of the products we used otherwise it wouldn't work properly, including the food colouring. The recipe is 1 cup of baking soda (dry) - 1/2 cup of citric acid - 1/2 of epsom salt - 1 tsp of water (wet) - 1 tsp of essential oil - 3 tsp of olive oil / Coconut oil / Almond oil - 2-3 drops of any colour of food colouring.
I found it easy to mashup the mix of the products together because it can easily dry and then roll it up into a ball, then place it into the cupcake mould, we also got to take it home.
I found it hard to handle the amount of time this took of mixing it because whenever I would try mix it, it would just lose its colour, so I had to add 2 drops of food colouring in order for it to not lose its colour and stay yellow.
Next time I will add a different colour to my bath bomb because I didn't expect it to come out with barely any colour.
How did it react? When a bath bomb comes in contact with water, the baking soda and citric acid react to make carbon dioxide bubbles. This is an acid–base reaction, where baking soda (also called sodium bicarbonate) is a weak base and citric acid is a weak acid.
