1. Today is October 2, 2012
I am grading notebooks TODAY, make sure everything is complete, your table of contents is up to date and you have numbered your pages.
If everything is in order, study for your chemical/physical reaction quiz

2. Give me five properties of METALS
Shiny
Good Conductor of heat and electricity
Ductile
Malleable
High Melting point

3. Give me five properties of NONMETALS
Dull
Poor Conductor of heat and electricity
Brittle
Low Melting point
Half are gases

4. Give me two examples of Metalloids and tell me properties of Metalloids:
Metalloids have properties of both metals and nonmetals
Boron, Silicon, Germanium, Arsenic, Antimony, Tellurium, Polonium, Astatine

5. What is the definition of an element?
An element is a pure substance that cannot be broken down into smaller substances by ordinary means

6. Nitrogen Oxygen Hydrogen Carbon
What elements are the most important on our earth? (Circle the one that is most important for living things)
Nitrogen
Oxygen
Hydrogen
Carbon

7. Salt- Sodium and Chlorine Water- Hydrogen and Oxygen
What are the two compounds that we have been talking about A LOT? What elements are in those compounds?
Salt- Sodium and Chlorine
Water- Hydrogen and Oxygen

8. Give me TWO examples of chemical change:
Rusting
Burning
Toasting
Cooking
Baking

9. Give me TWO examples of physical change:
Melting
Dissolving
Boiling
Breaking
Tearing

10. Explain what a “State of Matter” Change is.

11. How does a compound differ from an element?

12. What TWO elements is the atmosphere made out of? And what percentage?
78% Nitrogen
21% Oxygen