Lava Lamp

Step 1Put a few drops of coloured liquid watercolour in the bottom of your glass jar. Fill your jar a third of the way with water and then sprinkle in some glitter.
Step 2Top up your jar with oil, filling it almost the whole way.
Step 3Get ready... Once you drop in the effervescent tablet, the fun will begin! Carefully drop the tablet into the jar – once it hits the coloured water, it will create a gas, pushing the water up through the oil and resembling a lava lamp!