The amount of water that can evaporate depends greatly upon the localized microclimatic conditions. By simply weighing objects, the effect of microclimatic factors on potential and real (with plants) evaporation can be illustrated.
Plastic containers filled with water or plants are placed in various microclimates. By weighing them over time (hours or days) the evaporation and/or evapotranspiration (for plants) can be calculated from the loss in weight. The results are discussed, comparing the relative differences between the microclimates’ characteristics.
Measuring the weight changes (using a simple kitchen scale) should be conducted over the course of multiple hours (ideally over the course of one day). Potted plants can be observed over a longer time frame.
The significance of water and micro-climate conditions from one location to the next is made clear.