The microslide shows a blood smear of human blood that has been fixed and stained so that the different blood cells can be clearly distinguished. The red blood cells appear red, while the white blood cells are seen in purple-blue shades with different sizes and nuclear types. The slide provides a clear insight into the composition of the blood and makes it possible to work with both the structure and function of the individual cell types.

Life in a Drop of Water consists of 25 slides in series 7000 from Lieder. A slide set suitable for giving pupils and students an in-depth insight into the rich animal and plant life found in water.