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Today we start chapter 7, "The Model of the Atom."

HintPresent Day Atomic Theory, start with static electricity demo

ACT ONE: There should be an inflated balloon at each station. If I hear "squeaking" then the group is penalized. I HATE THAT SOUND! a) Idea one, balloon and paper, why does it jump up (also works with rice krispies) b) Idea two, the running water gag c) Idea three, can a balloon actually stick to a wall? . In each case, draw and explain (using two science terms) what is happening? . ACT TWO . Discuss what are the four "theories" of the atom. Dalton who said it was one sold thing Thompson who did plum pudding model (I think) Rutherford and gold foil Bohr, what most people think Today's model (the electron cloud) . ACT THREE . Ask them to draw, based on my descriptions, each of the first four models. I will post the best one or two. . ACT FOUR . I will pass out a worksheet (from end of chapter, section 7.1) and have them answer. . ACT FIVE . This will go to end of hour. . ACT SIX . If I am out of time, we can go over the answers as well.