Sponge Squeezing introduces water transferring with the ability to fill up an empty bowl by squeezing the water (three times) for each transfer, before absorbing more water into the sponge. The child recognizes that the bowl of full water becomes empty, and the empty one becomes full. It is important to concentrate on slower movements, waiting for that last drip as the child holds the sponge over the bowl before squeezing it. Also point out concepts using minimal vocabulary like, "this is full" and, "this is empty.
