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Discover how matter undergoes changes from one state to another, such as solid to liquid, liquid to gas, gas to liquid, and liquid to solid. Learn about the processes of deposition, melting, sublimation, freezing, evaporation, and condensation. Explore the factors that affect the rate of evaporation and compare the evaporation speed of water and alcohol. Find out how to convert gas into liquid.
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Changing State http://www.harcourtschool.com/activity/states_of_matter/
How can we change... • A solid to a liquid? • A liquid to a gas? • A gas to a liquid? • A liquid to a solid?
Changing state of water... Gas Solid Liquid
What is happening to the particles? Gas Solid Liquid
Desposition Melting Sublimation Gas Solid Freezing Evaporation Liquid Condensation
Freezing Super freezing - http://www.bbc.co.uk/bang/handson/super_cool.shtml
Freezing Which will freeze first... Hot Water or Cold Water
Freezing Which will freeze first?
Freezing Making ice cream…
Evaporation What happens when liquids are heated? What do the particles do? (balloon, conical flask)
Evaporation How can we speed up the rate of evaporation?
Evaporation Which evaporates faster... Water or Alcohol
Condensation How can we change gas into liquid?