THis is a new activity that I have introduced recently to my kid, and they just loved it. They cannot get over this experiment, as we call it, and are more often then not begging for more
Here is how it works:
Each child is given a bucket of water with some material to "test"
they drop an item into the bowl, and see whether this item will float or fall right in the bottom of the bowl
then, they put the item onto a laminated sheet of paper, according to the result of their test
lamination is kinda of a must here ;)
This thing is a hit! Even with my 4 1/2 yo.