Preparatory activities:

Tools and materials used:

- transparent glasses, electric kettle, cold plate

- tap water, snow, ice

Activity:

- Experiment to observe the change in the state of aggregation of water

Subsequent activities:

- Discussion of bodies in the three states of aggregation

- Observation of work tools

- Spotting the differences between the snow, the water in the glass and the steam coming out of the mug of hot water (color, density, volume, temperature)

- Observing transformation phenomena in real time

Results:

- Obtaining water vapor by boiling/evaporation, water droplets from vapor by condensation, turning snow into water by melting, ice from water by solidification-freezing

- Understanding the phenomenon of water movement in nature and its importance for the life cycle on earth.