Hon Chemistry 11-18-14 Structure of the Atom, Pt. 2

HON CHEMISTRY – Hey guys, here’s the lecture from Tuesday on how scientists discovered protons and neutrons. You know, in class yesterday and today I just gave you mostly one name to go with each, but don’t forget they work with other scientists to get the job done!!

Make sure you know the name of the scientists, the name of their experiments, be able to draw a diagram of their experiment, and describe how they interpreted the experimental results that led to their discoveries.

Don’t forget about the video clips we watched in class, they’ll help you review the different experiment that the guys like Thompson and Rutherford did. Here’s another one on The Discovery of the Nucleus. And again – do you think there could be anything smaller than protons, neutrons, and electrons? Hmmmmm……

By the way – how do you feel about playing scientist tomorrow? How is what you’re going to do similar to the work of early scientists in discovering the structure of the atom? Don’t forget to bring your sock/can atoms with the surprise items inside! Don’t forget that you DO NOT have to cut your sock. Just get a sock that’s really long, and stick a clean, empty can inside it. Well, make sure you put your mystery items (three or more) inside the can first!

HON CHEMISTRY 11-14-15 Structure of Atom, Pt. 2 from Tammy Skinner on Vimeo.

flickr photo by Here’s Kate

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Chemistry 11-18-14 Percent Composition

CHEMISTRY: Great job today… although, it was kind of weird watching you chew gum in class!

Lab reports are due Friday midnight – submitted as PDF 2X. Double check your calculations, sig figs, etc. Remember you are finding the percent of SUGAR in gum, so that means the mass of what goes on top? Show all your data in a data table – everything you measured and everything you calculated, and be sure to include formulas and calculations. And don’t forget the pictures and the conclusion!

BTW – I think you’ll find that percent composition problems are really easy to catch on to. Make sure, though, you can write chemical formulas (I won’t give them to you!) and that you’ve memorized the formulas for acids and those chemical names for common substances so that you’ll have something to find the percent composition of!

CHEMISTRY 11-18-14 Percent Composition from Tammy Skinner on Vimeo.

flickr photo by Τϊζζ¥

Physics 11-18-14 Intro to Work

PHYSICS: Funny thing about words, all this work you thought you’d been doing, was it? Work, I mean? Great intro to chapter 5! I think you’ll do great with the work problems, just remember everything from the last chapter and multiply by d!

PHYSICS 11-18-14 Intro to Work from Tammy Skinner on Vimeo.

flickr photo by *hb19