LET'S LEARN about water! Read HELLO, RAIN! Compare the density of water to other liquids. Meet a firefighter and a toad. Solve "The Case of the Cake Commotion." Make puppets. Onehour programs help children ages 4-7 learn while having fun. Content provided by Brooklyn Preschool of Science, Dancing Classrooms, Feel Your Best Self, Flor Bromley, Houston Zoo, New Victory, Meet the Helpers.