Water cycle
Step 1 - Activities
How does it rain?
Let’s seek for answers to the following questions while performing an activity;
What is called the liquid to gas phase transition?
Which daily life examples can you give for the transition from liquid phase to gas phase?
The spirit stove is lighted in an appropriate location and the tripod is placed on top together with the gauze. A beaker is filled with water halfway up and placed on the gauze. The water is allowed to boil for some time. Let’s think about what kind of a change we would feel on our hand when we reach for the steam of the boiling water. Have you felt the warmth and the humidity/wetness? Place the other beaker next to the tripod. Hold a plate against the steam coming out of the boiling water. The changes in the steam hitting the plate are observed.
We have tried to observe the rain formation in the experiment that we have conducted. The water vapor evaporating from the beaker placed on top to the spirit stove has condensed by hitting the plate. Therefore water in gas form has got colder when it hit the plate and went back into liquid form.