When gas particles cool down and lose energy they change into a liquid.
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15
Evaporation is the change from gas to a liquid.
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eraser
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magnet
Take 15 points!
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shark
Other team loses 15 points!
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banana
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baam
Lose 15 points!
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gold
Win 50 points!
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rocket
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banana
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heart
Other team wins 25 points!
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25
banana
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10
Evaporation happens all the time.
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10
What do we call the temperature at which a solid melts?
The melting point.
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10
Where in the water cycle does evaporation happen?
Rivers, lakes, seas, and plants.
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rocket
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gift
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baam
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15
Name two factors that speed up evaporation.
wind and heat.
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20
Explain the process of melting using the particle model.
When heated, the particles gain energy, move more quickly, and pull further apart. With enough energy, they escape from the solid and change into a liquid.
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15
What is the boiling point of pure water?
100 degrees Celcius.
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10
What is evaporation?
It is when a liquid turns into a gas.
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5
What are formed when water vapour condenses?
Clouds.
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15
Liquid has no shape. It formsto take the shape of the container it fills.