1. Warm-Up 2/26/14
Make sure that you have sketches in your concept map for Element, Compound, Heterogeneous, and Homogeneous!

2. Describing Matter
Wednesday 2/26/14

3. Physical Properties and Chemical Properties

4. Physical Property
Characteristic of a material that you can observe without changing the substance
Examples: color, size, shape, density, melting point, boiling point

6. Chemical Property
Characteristic of a substance that indicates whether it can undergo a certain chemical change.
Examples: flammable, combustible, may react to light, acidic

8. Physical Change
A change in size, shape, or state of matter. Substance does not change identity.
Examples: melting ice, cutting paper, breaking glass

9. Chemical Change A change of one substance into a new substance.
Examples: rusting metal, fireworks explode, baking cookies

10. Law of Conservation of Mass
The mass of all substances before and after a chemical change must stay the same
Matter can not be created or destroyed (just transformed!)

11. Your Job
Start working on the Newspaper assignment. You will have tomorrow to finish it.
Notes go on pg. , Newspaper on pg.
QUIZ tomorrow