1. Not the same as heat!!!

2. HeatTemperature  Form of energy  Quantity of energy within a system  Heat flows from higher temp to lower temp  Measure of intensity of heat  SI unit for temp is Kelvin  No degree symbol for Kelvin KK  K, °C, °F

3. Mixture  Retain individual properties  May be physically separated Filtrationsolids from suspension Magnetmagnetic Centrifugesuspended from solution Siftlarge from small Distillationsolvent from solution Fractional distillationseparate alcohol Chromatography colors Electrophoresismolecules based on size Evaporationsolute from solution

4. Element  Can not be broken down  Found on the periodic table  Simplest form  Building block of all substances

5. Compound  Combination of two or more elements  Can not be separated by physical means  Do not retain properties of their individual elements

6. Molecule  Smallest uncharged individual unit of a compound  Formed by two or more atoms joined together  Water  All compounds are molecules but not all molecules are compounds

7. Mixture  Homogeneous  Uniform  Heterogeneous  Two or more phases

8. Properties PhysicalChemical  Color  Taste  Odor  Physical existence  State of matter  Mp  Density  Bp  Ability of substance to form a new substance

9. Changes PhysicalChemical  Changes in physical properties  Change in state of matter  No new substance is formed  New substance is formed  Different set of properties

10. Intensive PropertiesExtensive Properties  Do not depend on the amount of matter  Color Odor Luster  Malleability  Ductility  Conductivity  Hardness  Melting/Freezing Point  Boiling Point  Density  Depend on the amount of matter  Mass  Weight  Volume  Length