Ask child to get water from water source & drain out water into sink before & after activities with water. Buy a large tray and perform all activities with water on tray.
Practice pouring water to 2 glasses (know when to stop when a glass is full)

Develop motor skills, concentration, eye-hand coordination

1 measuring cup containing just more than 2 glasses of water, 2 glasses, sponge to clean-up spills