Lessons for Understanding Our Water Footprint” are middle-school science lesson plans that teach student about direct and indirect (also known as virtual) water use . Three free, downloadable lessons encourage students to learn about water resources and explore how their food choices and shopping habits have a larger impact on their daily water consumption and their school campus than they may realize. Designed for lower secondary level – ages 11 to 14 – these interactive lessons can easily be adapted to the elementary level.