vanish to the air

8/3/2019 Vanish to the Air

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Vanish to

The AirEvaporation

process


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Science Concept

Water vapor(gas)

Water (liquid)


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Rate Of Evaporation

Temperature: the higher thetemperature, the more evaporation

Humidity: the lower the humidity, the

more evaporation

Wind speed: the higher the wind speed,the more evaporation


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Engage

You want to dry your clothes.

Which place that you will choose to dry theclothes?

Why?

How the clothes are dried?


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Empower


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ResultAfter 20 minutes


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EmpowerResult

at air-conditioning room at room without air-

conditioner


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Under the Sun

Temperature : 40-45 C

Humidity : 11-14 %

Time taken to evaporate 1200 second


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In air-conditioning room


Humidity : 26-27 %

Time taken to evaporate 4600 second =76.6 min


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In a room


Humidity : 18-20 %

Time taken to evaporate 1200 second = 20 min


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Empower

Discussion1. From the graph, what is the relationship

between temperature and humidity with the

rate of evaporation?2. Which location show the fastest rate of

evaporation? Why?

3. How does the process takes place indifferent location?

4. What are the other factors that can affect therate of evaporation?


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UniqueFeature

s


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Enhance

It was a heavy rain outside! At the same time, youwant to dry your shoes and use it tomorrow. Howyou manage to dry the shoes and wear it

tomorrow? Why?


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Extension

As we know, evaporation is the transition

process of :

liquid gas

Same goes to boiling and transpirationprocess too.

What are the comparison of evaporation,boiling and transpiration processes? Arethey all the same?

vanish to the air

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