1. Chemical Building Blocks Chapter 1.1 (pgs 14-21)
Matter
Chemical Building Blocks
Chapter 1.1 (pgs 14-21)
Have students consider what matter is
Possible group discussion, then hear suggestions
How would you describe matter?
What are characteristics of different objects
If time stretch needed, States of Matt video

2. What is Matter? ?

3. Matter… Is anything that has mass and occupies space
Has different states…
Solid
Liquid
Gas
Plasma
Possesses characteristic properties
All diamonds have the same hardness.

4. Solid
Molecules are in fixed positions
Definite volume and shape

5. Liquid Molecules are loosely connected
Definite volume, indefinite shape
Takes the shape of the container

6. Gas Molecules are as far apart as possible No definite volume or shape
Will fill all available space

7. Plasma Plasma can be considered as a gas of highly ionized particles
Exists at temperatures of several thousand degrees Celsius
Unlike gases, respond to electromagnetic forces.

8. Plasma
Examples include charged air after lightning and stars like our Sun.

9. Plasma… TV
How Plasma TVs work.

11. States of Matter
Another characteristic property that matter of the same type shares is temperature
Boiling Point: temperature at which a liquid boils (bubbles)
Melting Point: temperature at which a solid melts (thaws).

12. Boiling / Condensation
Types of Change
Ice
Water
Water Vapor
Deposition /
Sublimation
Melting /
Freezing
Boiling / Condensation

13. Types of Change Physical: Chemical:
Changing the appearance of an object
Ripping paper in half, crushing a can
Chemical:
Changing the composition of an object so that its initial components can not be retrieved
Burning wood, fireworks exploding.

14. Physical or Chemical?
Cooking an egg –
Chemical change

15. Physical or Chemical?
Sawing a tree –
Physical change

16. Physical or Chemical?
Dissolving salt in water –
Physical change

17. Physical or Chemical?
Rusted iron pan –
Chemical change

18. Physical or Chemical?
Ice Melting –
Physical change

19. Mixtures & Compounds
Mixture: two or more substances that are mixed, but not chemically combined
Solution is a mixture that appears to be a single substance.

20. Mixtures & Compounds
Pure Substance: made of only one kind of matter with definite properties
Water from the tap, ocean, or in your blood is the same
Elements are pure substances.

21. Mixtures & Compounds
Compounds: a pure substance (elements) that are chemically combined
Water
Carbon Dioxide
Salt
Sugar
… H2O
… CO2
… NaCl
… C12H22O11

22. Matter can not be created Matter can not be destroyed
Changed, but Unchanged
Matter can not be created Matter can not be destroyed

23. Due: Friday, September 16th
What to Work On
Read pages 14 – 21 in text
Section Review questions on page 21 (#’s 1-5)
Due: Friday, September 16th