1. Changing the State of Matter

2. Science court: Particles in Motion

3. Guidelines for Changes of State Foldable

4. Outside with flaps closed
SOLID
Picture of a solid
+ HEAT
Source of heat
LIQUID
Picture of a liquid
- HEAT
Source of “cold”
GAS
Picture of a gas
Highlight these words!
Color these things!

5. Inside with flaps open

6. Changing the State of Matter
Heat/Energy is Added
Heat/Energy is Removed

7. Independent Properties of Matter
6.P.2.1 Recognize that all matter is made up of atoms and atoms of the same element are all alike, but are different from the atoms of other elements.
6.P.2.2 Explain the effect of heat on the motion of atoms through a description of what happens to particles during a change in phase.
6.P.2.3 Compare the physical properties of pure substances that are independent of the amount of matter present including density, boiling point, melting point and solubility to properties that are dependent on the amount of matter present to include volume, mass and weight.

8. Changing the State of Matter
TO CHANGE THE STATE OF MATTER HEAT HAS TO BE ADDED OR REMOVED !!!!!!!!!!!!!
When heat is added, molecules in a substance will vibrate or move faster and move farther apart.
This will change a solid to a liquid or a liquid to a gas
When heat is removed, molecules in a substance will vibrate slower and move closer together.
This will change a gas to a liquid, or a liquid into a solid.
Sublimation occurs when enough heat is added quickly enough to change a solid directly into a gas.

9. Independent Physical Properties
Some Physical Properties of matter NEVER change REGARDLESS of the AMOUNT of matter. These include:
Melting Point,
Boiling Point,
Freezing Point, and
Density
Solubility

10. All Pure Substances (Elements) have a specific freezing, melting, and boiling point
Substances (like water) also have a specific freezing, melting, and boiling point
It doesn’t matter how much of the substance there is the specific temperature does not change
But, if there is less amount of the matter, the temperature will just be reached faster.

11. Phase Change Points: Freezing Point
The temperature at which a substance changes from a liquid to a solid.
Examples of freezing points
Water = 0 degrees Celsius
Mercury = -37 degrees Celsius
Nitrogen = -209 degrees Celsius

12. Phase Change Points: Melting Point
The temperature at which a substance changes from a solid to a liquid
Examples of Melting Points:
Water = 1 degrees Celsius
Mercury = -38 degrees Celsius
Aluminum = 660 degrees Celsius

13. Phase Change Points: Boiling Point
The temperature at which a substance changes from a liquid to a gas (heat of vaporization).
Examples of Boiling Points:
Water = 100 degrees Celsius
Mercury = 356 degrees Celsius
Gold = 2,700 degrees Celsius

14. Density = mass divided by volume
<<<Click “Density” for vid.
How tightly packed matter is in a certain amount of space. Or how heavy something is for its size
Density is a Physical Property that DOES NOT CHANGE regardless of how much matter there is!!
Density = mass divided by volume
Mass
Use Scales or Triple Beam Balance
Units are grams
D = M V
Volume
Use a formula (V=l*w*h) or Water Displacement Method
Units are liters or cm3

15. Objects with more density than the liquid it is in will sink.
Objects made of the same material always have the same density!!!!!
Ex: 60 g of gold has the same density as 600 g of gold.
<<<Click below or “Density” for vid.
Objects with more density than the liquid it is in will sink.
Objects with less density than the liquid it is in will float.

16. Click above or the smilies for vid. >>>>>>

17. 5 facts about Density
Click above or the cubes for vid. >>>>>>

18. Solubility
the ability of a substance to dissolve in another substance when mixed.
Solubility is a property that WILL NEVER change regardless of the amount of matter there is!!!!!!!!!!
Click for vid. <<<<<<

19. Solute
Any substance that is being dissolved in a substance to create a solution (mixture).
Ex. Sugar, salt
Remember this: The ‘Lute’ goes in the ‘vent’
SOLUTE

20. Solvent
a substance that is capable 0f dissolving a solute, usually a liquid.– water is the most common solvent.
SOLVENT

21. Solute Goes In the Solvent
Saturation Rate – the point when no more solute will dissolve in a solvent.
Solute Goes In the Solvent

22. The Opposite: Insoluble
When a substance (solute) will not dissolve in a solvent.