I put a couple of drops of food colouring in the water to make it easier to work with and had it all set out on a tray. Keeping a sponge and cloth on hand is essential too.
BabyEbi sat for about 30 minutes pouring from one container to another, I had drawn lines on the jar so he could fill to the line but I think it will be a while before he grasps the concept of that, actually getting the water into the desired container was the challenge.
Check out my 50 Easy Sensory Activities To Do A Home Post and