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Today is October 2, 2012

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

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Today is October 2, 2012

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  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 ofMETALS • Shiny • Good Conductor of heat and electricity • Ductile • Malleable • High Melting point

  3. Give me five properties ofNONMETALS • 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 anelement? An element is a pure substance that cannot be broken down into smaller substances by ordinary means

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

  7. 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 ofchemical change: • Rusting • Burning • Toasting • Cooking • Baking

  9. Give me TWO examples ofphysical change: • Melting • Dissolving • Boiling • Breaking • Tearing

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

  11. How does acompounddiffer from anelement?

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

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