Walter, a warthog, sees water everywhere: in the bathtub, from the garden hose, from the sky as rain. He writes down everything he notices about water in a special blue notebook. And then he shares what he learns with his friend Willa. As Walter and Willa do some science experiments, they find out cool things about water: water evaporates, ice floats, water can bring a dying plant back to life, and more. Tag along with Walter and Willa in this...