
For the scientific program for preschoolers, called 'Fab lab', we created a nice learning game. Users have view items and have to guess if they will sink or swim. They then have to place the item in the water tank and see what happens.
As you progress in the game you can then guess on what will happen if you pour water in some of the floating items. This is a nice dry way for parents to teach their young ones the fundamentals of water.