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Complete each step on a piece of notebook paper.
Properties of Matter Creating a diagram that shows Melting and Boiling Points “THE LINE” Complete each step on a piece of notebook paper. You MUST practice drawing this line OVER and OVER again!! This must be memorized!
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Draw a line
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Label it Solid, Liquid, and Gas
Solid Liquid Gas
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Insert lines at 0 degrees and 100 degrees
Solid Liquid Gas 0 degrees 100 degrees
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Add a red line and arrow showing that Thermal (heat) energy is being added.
Solid Liquid Gas 0 degrees 100 degrees Adding Thermal Energy
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Add a blue line and arrow showing that Thermal (heat) energy is being removed.
Solid Liquid Gas 0 degrees 100 degrees Adding Thermal Energy Removing Thermal Energy
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If you go to the right on the line you are adding energy to the molecules. If we add energy to Solid and get it hotter than 0 degrees we make it a Liquid. This is called melting Melting Solid Liquid Gas 0 degrees 100 degrees Adding Thermal Energy Removing Thermal Energy
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If we go to the left on the line we are removing energy from the molecules. If we have liquid and remove energy to the point it is below 0 degrees we cross the freezing point and the water becomes ice Freezing Melting Solid Liquid Gas 0 degrees 100 degrees Adding Thermal Energy Removing Thermal Energy
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So, 0 degrees Celsius is BOTH the freezing and melting point of water
So, 0 degrees Celsius is BOTH the freezing and melting point of water. It just depends on if you are adding or removing energy as you cross the 0 degree temperature point. Freezing Melting Solid Liquid Gas 0 degrees 100 degrees Adding Thermal Energy Removing Thermal Energy
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If we are adding energy as we cross 100 degrees we go from liquid to gas. This is the boiling point.
Freezing Boiling Melting Solid Liquid Gas 0 degrees 100 degrees Adding Thermal Energy Removing Thermal Energy
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If we are removing energy as we cross 100 degrees we go from gas to liquid. This is the condensation point. Condensation Freezing Boiling Melting Solid Liquid Gas 0 degrees 100 degrees Adding Thermal Energy Removing Thermal Energy
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In Solids the molecules are packed together tightly and vibrate against one another.
Condensation Freezing Boiling Melting Solid Liquid Gas 0 degrees 100 degrees Adding Thermal Energy Removing Thermal Energy
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In Liquids the molecules are farther apart and sliding over each other
In Liquids the molecules are farther apart and sliding over each other. They have more movement than solids. Condensation Freezing Boiling Melting 0 degrees 100 degrees Solid Liquid Gas Adding Thermal Energy Removing Thermal Energy
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In a Gas the molecules are spaced far apart and moving about quickly
Adding Thermal Energy Melting Boiling Solid Liquid Gas 0 ˚C 100 ˚C Freezing Condensing Removing Thermal Energy
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Interesting Facts Boiling and melting points are a physical property of matter Every substance in existence has a boiling and melting point Even diamonds have a melting and boiling point. When a diamond boils it turns into pure carbon dioxide gas
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Your Task Create a poster sized drawing of the changing states of matter. If you me a picture of your poster hanging on your bedroom wall or bathroom mirror I will give you 25 extra Einstein Dollars! If you can’t send a picture you can bring in a note signed by your parent/guardian saying it is up there.
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