for my smaller ones, i do those things for them. however they get there though, they just love playing in the water! they scoop, they pour, they "measure", they experiment. and of course, they get to wipe down the bathroom with towels when they're done.
for a little extra fun, add some soap or bubble bath to the water. or let them use a bar of soap to see how slippery it gets. ice cubes would be fun too. you can also challenge them to a game of "sink or float"- choose a few things from around the house, have the kids guess if the items will sink or float, and 