Factors affecting evaporation

Which of the following factors thus affect evaporation ?

• Increase in Surface Area

• Increase in temperature

• Increase in Humidity

• Decrease in Wind speed

What is Humidity ?

• Amount of water present in air

• Amount of water vapour present in air

• Amount of energy present

What affect the rate of evaporation

• Humidity

• Wind

• Exposed surface area

• Temperature

Sam kept some water out side in the sun next day he saw nothing in the glass what happen to the water?

• It disappeared

• It evaporated

• Magic

Evaporation occurs when water changes into 

• transpiration
• snow
• solid
• vapor

the change of state from a liquid to a gas

• water cycle
• evaporation
• precipitation
• condensation

Evaporation takes place at

• 100^o celsius

• all temperatures

• 0^o C

• 37 ^o C

Why container C will evaporate the fastest?

• The largest surface area

• The highest humidity

• The highest temperature

• The highest air movement

When the surrounding temperature is high, the rate of evaporation _____________________

• increase

• decrease

• no change

On a windy day, clothes dry fast because evaporation rate is

• low

• high

• constant