What to do with two rough boys on a hot day? Bam on ice. The idea came from Let's Explore and Scribbit.
Let your imagination run wild when gathering all sorts of treasures. Look through your junk drawer for odds and ends - like bouncy balls, clothes pins, small plastic toys, coins, and even a few giant dried lima beans - covered them with water and freeze them overnight.
I chose things that didn't really matter if they were destroyed in this project. To my surprise, the boys weren't as rough with the hammers as they could have been. Most everything survived except a butterfly cookie cutter (that had been jammed full of dried play-dough).
Mr. Intensity busted his block of ice much faster than Eli (who is 9 months younger). I'm not sure if this was a developmental thing, because Mr. I's block was thinner, or b.c he is just more proficient with bamming.