Back in May we had some seriously hot weather for our town. The kiddos got a bit lethargic and so I brought out a class favorite and added a bit of ice to the mix.
The kiddos love mixing colors and experimenting with baking soda and vinegar. They spent about 30 minutes noodling around. We began with ice cubes and watercolor and then a couple of drops of vinegar was added along with a smattering of baking soda. There were a lot of Oooooohs and Aaaaaaahs.
They become so involved they don't even complain about the scent of the vinegar. They were also completely happy with their first color choice and did not ask for other colors like they usually do. Yay for science!