Science fair experiment

Hi my name is Siale and my groups' science fair question is what causes the biggest chemical reaction?

In my group, my team members are Haydara, Foki, Fane, and Heleina.

In the science project me and my group each had a role to play. Haydaras role was  to see if anyone had any questions. Next was Fane she was the scientist she had to explain the board to people who came to our station. Then it was Foki he was the experimenter he had to make volcanoes erupt by putting vinegar and food colouring in a little plastic cup and put water in side. Then he had to tip it all in the sand volcanoes the the little kids made. Last was Heleina she was the second scientist.