1. EVAPORATION is the process of heating water to form a vapour Mª Teresa Villarroya i Font

2. WHAT IS EVAPORATION? Evaporation is a process, a change. Evaporation is a process, a change. It’s the heating process that changes It’s the heating process that changes liquid into a gas.

3. RATES OF EVAPORATION Wind :the higher the wind speed, the more evaporation. Wind :the higher the wind speed, the more evaporation. Temperature: the higher the temperature, the more evaporation. Temperature: the higher the temperature, the more evaporation. Humidity: the lower the humidity, the more evaporation. Humidity: the lower the humidity, the more evaporation. Area: the bigger the area, the more evaporation Area: the bigger the area, the more evaporation

4. www.sanbrunowater.ca..gov/tech.htm

5. LOOK AT THE CLOTHES ON THE WASHING LINE. What has happened? What has happened? Why has it happened? Why has it happened? How do we call the process? How do we call the process?

6. LOOK AT THE WATER INTO THE PAN. What has happened? What has happened? Why has it happened? Why has it happened? What do we call the process? What do we call the process? Where is the water, now? Where is the water, now?

7. LOOK AT THE WOMAN. What has happened? What has happened? Why has it happened? Why has it happened? What do we call the process? What do we call the process? Water has turn into ……. Water has turn into ……. Liquid has changed into a …… Liquid has changed into a ……

8. LOOK AT THE PEOPLE Are the conditions good or bad for evaporation? Are the conditions good or bad for evaporation? Why? Why?