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

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

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

Page 1: Condensation To know that condensation is the process of gas cooling to form a liquid.

CondensatioCondensationn

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

Page 2: Condensation To know that condensation is the process of gas cooling to form a liquid.

So what is So what is CondensatioCondensatio

n?n?•Condensation is a process, a change•It’s the cooling process that changes gas into a liquid•It is the opposite of evaporation.

Page 3: Condensation To know that condensation is the process of gas cooling to form a liquid.

Particles again Particles again folks!folks!

Dry Dry dayday

Wet Wet dayday

Air particlesWater particles

Page 4: Condensation To know that condensation is the process of gas cooling to form a liquid.

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

Page 5: Condensation To know that condensation is the process of gas cooling to form a liquid.

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

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Bathroom Bathroom mirrormirror

•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 dropletsH e l l H e l l

o !o !

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Look at the Look at the cancan

•What has happened?•Why has it happened?•What do we call the process?

Page 8: Condensation To know that condensation is the process of gas cooling to form a liquid.

Look at the Look at the glass of iceglass of ice•What has happened?•Why has it happened?•What do we call the process?

Page 9: Condensation To know that condensation is the process of gas cooling to form a liquid.

Look at mirror Look at mirror on top of the on top of the

hot drinkhot drink•What has happened?•Why has it happened?•What do we call the process?

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Breath on Breath on your mirrorsyour mirrors•What has happened?•Why has it happened?•What do we call the process?

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CondensatiCondensationon•To know that condensation is the

process of gas cooling to form a liquid

09-10-06

Task 1 – choose the best word to complete these sentences

1.Condensation happens when water vapour … cools/heats

2.Condensation is the opposite of … dissolving/evaporation

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

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Next…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

Page 13: Condensation To know that condensation is the process of gas cooling to form a liquid.

ExtensionExtension•Explain in your own words what happens on a cold day when you breath on a cold window•List other examples of condensation

Page 14: Condensation To know that condensation is the process of gas cooling to form a liquid.

What have What have you learnt?you learnt?•What is condensation the process of ?•Can you give 3 examples of condensation happening?