Today, we have been testing variables to try and make the biggest eruption using cola and Mentos. One group changed the temperature of the cola, one group increased the amount of Mentos and one group changed the cola to a diet cola. Which one do you think made the biggest eruption?
Some children thought about some ‘what ifs’ after the experiment, such as: What if we heat up the coke? What if we use a different fizzy drink?
Can you think of any other ‘what ifs’ at home?