Materials you will need:
Invite your child to pretend to be the concession stand worker at the zoo or movies. Have them fill plastic cups with different levels of “soda� (coloured water) and then arrange them in order from least full to most full and then reverse the order. Add a baster or eyedropper to change the water level.
*Tip: Place a tray or cookie sheet under the cups to catch any spilt water.