Science Test

The other day we were in the school lab. We were making lava lamps in test tubes. Our groups idea was using carbonated water for more bubbles. Our hypothesis was that carbonated water would give bigger blobs. We were right the carbonated water erupted right when the berocca tablet touched the water. We used two test tubes with 5 cm of  normal water and carbonated water with the rest soy oil with food coloring and a bit of the fizzing tablet. It is an experiment for the whole family. http://www.sciencebob.com/experiments/lavalamp.php