How to make the simplest bath bombs at home (DIY)

For cool and safe experiments to do at home sign up to MEL Science here: https://bit.ly/3h6Mhcu

Can a sub­stance be sol­id and liq­uid at the same time? Here’s an ex­per­i­ment to make a non-New­to­ni­an flu­id which doesn’t be­have by the rules!
Warn­ing! Only un­der adults su­per­vi­sion.

Reagents and equip­ment:
Equipment:
glass bowl
vegetable oil
food colouring (optional)
citric acid
baking soda
silicone ice cube mold
water

Instructions:
Mix roughly 5 tablespoons each of baking soda, citric acid, and vegetable oil in a glass bowl. Add food colouring (optional) and stir. Transfer the mixture to a silicone ice cube mold and leave it in the freezer overnight. When your bath bomb is ready, toss it in the water and watch it fizz!

Scientific description:
When exposed to water, the bath bomb’s ingredients (citric acid and baking soda) begin to gradually dissolve and react with each other. This creates a lot of carbon dioxide, which forms enormous quantities of bubbles on the surface of the water!

Видео How to make the simplest bath bombs at home (DIY) канала MEL Science