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.

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Presentation transcript:

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

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

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

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

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

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

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

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

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

Explain what a “State of Matter” Change is.

How does a compound differ from an element?

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