How to make a Lava Lamp

Materials

• Salt
• Oil
• Clear glass
• water
• food colouring

1. Fill the glass with water two-thirds of the way up. 
2. Pour an inch of oil in the glass slowly. 
3. Put two drops of food colouring. 
4. Sprinkle lots of salt into the glass. 
5. You can add in some raisins and detergent into it.