Making Fireworks in a jar
Follow these simple instructions to make some colourful fireworks to brighten up a dull, rainy January day.
This experiment uses the different densities of the liquids to cause this effect.
The oil isn’t as dense as water and sits on top of it. The food colouring drops through the oil because it is water based and denser than oil, when the food colouring starts to mix with the water it creates the firework effect.