Science day went pretty well even though it was really hot - our first real summer weather this year. We blew balloons up with the reaction of baking soda and vinegar, then made film canister rockets and did the Mentos and Coke fountains. About 3/4 of the way through it, a bus pulled into the park and about 60 preschoolers from the city school system joined us under the picnic pavilion, so we wrapped it up quickly. The preschoolers were impressed with the Mentos and Coke fountains we were still doing when they got there. I had my cameras in my purse but forgot to take any pictures!