Science

Today in science we were making Lava Lamps. It was so fun. I am going to share what I learnt with you and show you how to make them. 
You will need:
Oil
Water
Food colouring
Berrocca
An empty bottle


What you need to do:
Fill bottle with water about quarter full. Then put oil in another quarter full. After you've done that drop 12 drops of food colouring in. Then get 2 Berroccas and put  them in.  The Berrocca contains citric acid and baking soda.  This reacts with the water.  The bubbles take hold of the food colouring, and make them float up to the oil, which has settled on the top.
That is how you make a Lava Lamp.