1. Describing Matter

2. Properties of Matter Hardness Texture Shape Temperature Flammability
Size
Color

3. Three Principal States of Matter
Solids, Liquids, and Gases

4. Characteristic Properties
Properties that hold true for the substance no matter what the sample. Can be used to identify the substance

5. Characteristic Property
What is a diamond’s hardness?
10 (On Moh’s hardness scale of 1-10)

6. Other Characteristic Properties
Boiling Point – The temperature at which a substance turns from a liquid to a gas.
Water’s boiling point is ________C
100

7. Melting Point- The temperature at which a solid turns to liquid.
Water turns from ice to liquid at _________C

8. Changes in Matter
Physical Changes-A change in a substance that does not change its identity. A change of state.

9. Changes in Matter
Chemical Changes-A change in which one or more substances combine or decompose to form new substances.

10. Chemical Activity
The ability of a substance to undergo a chemical change is _____________
Chemical activity

11. Types of Matter Matter can be classified into what two categories.
Mixtures and Pure Substances
Pure substances can be what two groups?
Elements and Compounds

12. Mixtures
Mixtures are two or more substances that are mixed but not chemically combined.
Example:
A Salad

13. Mixtures Solution- the ‘best mixed’ mixtures.
A solution has a solvent- usually water.
A solution has a solute-a substance mixed in with the solvent.
Example:
Salt Water

14. Pure Substances
What is made of only one kind of matter and has definite properties?
Pure Substances
Elements can not be broken down by chemical means.
Compounds are made of two or more elements.

15. Element or Compound?
Sulfur
Element

16. Element or Compound?
Copper Oxide
Compound

17. Element or Compound?
Quartz
Compound

18. Element or Compound?
Mercury
Element

19. Element or Compound?
Chlorine
Element