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Condensation PowerPoint PPT Presentation


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Condensation. To know that condensation is the process of gas cooling to form a liquid. So what is Condensation?. Condensation is a process, a change It’s the cooling process that changes gas into a liquid It is the opposite of evaporation. Particles again folks!. Air particles.

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Condensation

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Condensation

To know that condensation is the process of gas cooling to form a liquid


So what is Condensation?

Condensation is a process, a change

It’s the cooling process that changes gas into a liquid

It is the opposite of evaporation.


Particles again folks!

Air particles

Water particles

Dry day

Wet day


Dry day

On a dry day there is only a little water vapour in the air


Wet day

On a damp day there is much more water vapour in the air


Bathroom mirror

After a shower your bathroom is filled with steam (water vapour) from the hot water.

When it hits the cold glass of the mirror it turns back to water and forms tiny droplets

H e l l o !


Look at the can

What has happened?

Why has it happened?

What do we call the process?


Look at the glass of ice

What has happened?

Why has it happened?

What do we call the process?


Look at mirror on top of the hot drink

What has happened?

Why has it happened?

What do we call the process?


Breath on your mirrors

What has happened?

Why has it happened?

What do we call the process?


09-10-06

Condensation

  • Task 1 – choose the best word to complete these sentences

  • Condensation happens when water vapour … cools/heats

  • Condensation is the opposite of … dissolving/evaporation

  • On a wet day there are more… air particles/water particles in the air

To know that condensation is the process of gas cooling to form a liquid


Next…

Illustrate what happens when steam from a kettle hits a cold window

Useful words

water vapour-steam

gas-liquid

cools-heats

evaporation-condensation

process -changes


Extension

Explain in your own words what happens on a cold day when you breath on a cold window

List other examples of condensation


What have you learnt?

What is condensation the process of ?

Can you give 3 examples of condensation happening?


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