Water is the basis of every life, it makes up most of the human body and it is the largest area of our planet. There is a huge diversity of both plant and animal species in the water. The Nature House is also located on the shore of a water reservoir – Lake Liepaja. In the lesson, children will have the opportunity to get acquainted with life in water – using various water research tools, collect water samples, perform their analysis, determine the state of water quality, get acquainted with large and very small aquatic organisms.