The document summarizes activities that pupils at the Oskara Kalpaka Rudbarzu primary school engaged in for a theme on water. The pupils explored bodies of water near their school, studying stream banks, swans in ponds, and frogs and snails. They drew pictures of nature near water and mapped rivers in Latvia. The preschool children investigated a nearby stream and its beavers and frogs. The pupils conducted experiments with watercolors and saving water. They celebrated Europe Day on the river Venta by launching paper ships and singing the EU anthem.