In school bus kids started a discussion about how does water gets included into the clouds and where does it come from?

First, we noted on paper our thoughts and thought about the continuous circular movement of water. We talked about the global water cycle and wrote down the phrase, in Greek.

Afterwards, we experimented over the phenomenon of condensation and found out that our breath is hot air. Blurring the windows of the school bus with our breaths, helped us realize how air changes into liquid.

Then we played by creating patterns on the windows. Some children recognized the same happens in their bathroom.

The experimentation thrilled children and their interest continued at home. So, Despina brought us a photo she took out of the experiment she made in home with a glass and ice cubes.

We also studied the opposite phenomenon, evaporation, in which water is converted into air. We all remembered, from our daily life, when mom spreads out wet clothes to dry. At the same time we threw water on our trousers to see what happens and how quickly it dries.

Back in class, school bus children continued to experiment on evaporation during cleaning the blackboard with a wet sponge. They wrote something on the board using the wet sponge and shortly after it was lost! Rest children of the class liked the experiment and asked to write with a wet sponge, too. As you can imagine, we ended having the cleanest blackboard in school!!

(by Eleni Triantafyllopoulou, bus school teacher in Athens)