3

Act One: There are no labs today, instead two demonstrations. First, add 50 mL of water to 50 mL of rubbing alcohol. Mix them together, it goes lower. Why do you suppose that is? Did the mass change? Did the volume change? Did the amount of matter change?

Second go outside and do the charcoal monster demonstration. Sulfuric acid plus sugar.

Same three questions

Did the mass change? Did the volume change? Did the amount of matter change?

ACT TWO

What is a model.

Describe several times when a model could be used.

ACT THREE Get the ball and stick models. Remember to give them the base definitions, red is oxygen, blue is hydrogen, whatever. At your station, first create then draw, what is a water molecule? What is a salt molecule? Create a wierd molecule. ACT FOUR Photocopy out of the book, pages 7-9, read and discuss. Use the random name generator to see who reads. ACT FIVE

Photocopy out of the book pages 14-15, same thing.

ACT SIX

Write down and define six vocab words that we went over today.