1. What is a phase change? - when matter changes from one form to another due to the addition or removal of heat

2. Examples of phase changes: EVAPORATION CONDENSATION MELTING BOILING FREEZING SUBLIMATION

4. Phases of Matter

6. Kinetic Theory of Matter -All molecules are in constant motion -As temperature increases so does the rate at which molecules move and vis versa At what temperature, theoretically, does all molecular motion stop? Temperature scales: Kelvin Fahrenheit Celsius Boiling: Freezing:

7. Freezing point The temperature at which a liquid changes into a solid. Freezing point is 0◦C

8. Melting point The temperatures at which the solid form of the element becomes a liquid. The melting point of water is 0 degrees Celsius

9. Boiling point The boiling point of an element or compound is the temperature at which it goes from a liquid to a gann the boiling point of water is 100 degrees Celsius.

10. Condensation Point The temperature at which a substance goes from a gas to a liquid An objects boiling point and condensation point are the same 100◦C