Yes... sadly... they were killing ants. They were trying different things on the ants to see what would kill the ants faster when they came in contact with the different substances. I saw them use, Off Skintastic, water, salt, baking soda, vinegar, chalk, and anything else they could find. This all went on while I picked weeds in the garden. They noticed after they were finished that the ants didn't like to walk on the area that they used to do the experiments. And... yes... Austyn is sticking out his tongue at the ants in the picture above because they can't walk over that big wet spot to get to the ant hole. Sigh... well... I guess this is science, the unschooling way. LOL!!!