Chemistry 11-7-12 Revised Homework for Wedneday

CHEMISTRY: Here is the revised homework for Wednesday. Go to the online textbook and open chapter 3. Then, go to the Student Premium section and click on Animations and Simulations. Click on Animated Chemistry, and then you’ll find Section 3.3 Avogadro’s Number. That’s what you want. I’ve tried to link it for you, but it might not work.

Click to open and then work through the simulation to the end. At the end of it, you’ll work three problems and check your answer in the simulation. The work and answers to these problems is what you’ll turn in tomorrow. You don’t have to do a screen shot, I just want your work and answers on a sheet of paper. This will be a great review for you – layers of learning, remember?! Have fun!!

Physics 11-7-12 Friction Problems & Friction on Inclines

PHYSICS: Who knew snow skiing could be so complicated! Well friction problems on an incline anyway. Here’s the problem review from Wednesday on friction problems with the applied force at an angle, and brief intro to friction problems on an incline.

Back to the problems – remember, drawing the diagram is super, super important. Label all the forces and apply the concepts you know about net forces and resultant forces – let it tell you a story. And let’s crank it up a notch tomorrow!!

flickr photo by t i g


Hon Chemistry 11-7-12 Structure of the Atom, Pt. 1

HON CHEMISTRY: Pretty impressive little theory that Dalton came up with, huh? Good job making comparisons with the Modern Atomic Theory. In addition, I want you now to be able show a connection between the three laws we discussed yesterday and Dalton’s atomic theory.

Here’s the lecture from Wednesday on how scientists began to determine the structure of the atom and the existence of subatomic particles – well, the electron anyway. FYI – as we go on, 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. Wow, that’s a mouthful! Click here for the video on the Cathode Ray Tube Experiment that Thompson did, and also for a little history on The Discovery of the Electron. Do you think there could be anything smaller? Than an electron, I mean??

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!