Properties of MatterCreating a diagram that shows

Melting and Boiling Points

Complete each step in your Science notebook

Draw a line

Label it Solid, Liquid, and Gas

Solid Liquid Gas

Insert lines at 0 degrees and 100 degrees

Solid Liquid Gas

0 degrees

100 degrees

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

Solid Liquid Gas

0 degrees

100 degrees

Melting

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

Solid Liquid Gas

0 degrees

100 degrees

Melting

Freezing

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.

Solid Liquid Gas

0 degrees

100 degrees

Melting

Freezing

If we are adding energy as we cross 100 degrees we go from liquid to gas. This is the boiling

point.

Solid Liquid Gas

0 degrees

100 degrees

Melting

Freezing

Boiling

If we are removing energy as we cross 100 degrees we go from gas to liquid. This is the

condensation point.

Solid Liquid Gas

0 degrees

100 degrees

Melting

Freezing

Boiling

Condensation

In Solids the molecules are packed together tightly and move very slow

Solid Liquid Gas

0 degrees

100 degrees

Melting

Freezing

Boiling

Condensation

In Liquids the molecules are farther apart and sliding over each other. They have more

movement than solids.

Solid Liquid Gas

0 degrees

100 degrees

Melting

Freezing

Boiling

Condensation

In a Gas the molecules are spaced far apart and moving about quickly

Solid Liquid Gas

0 degrees

100 degrees

Melting

Freezing

Boiling

Condensation

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

Your Task

Create a poster sized drawing of the changing states of matter. If you email me a picture of your poster hanging on your bedroom wall or bathroom mirror I will

give you 5 extra points on your next test. If you can’t send a picture you can bring in

a note signed by your parent/guardian saying it is up there