Super science in P1 and P1/2

We were making our own lava lamps in science. We had to pour oil into a cup. Then we added the same amount of water. The lighter oil floated on top of the heavier water. We added food colouring using pipettes. It sank through the water to the bottom. After a wee stir we all got to drop a bit of vitamin C tablet into the liquid. The tablet started to fizz and make bubbles. The gas in the bubbles floated up through the oil to the top. They burst, letting the gas escape. The coloured water then sank back down to the bottom again. We were excited and delighted! Cool!