Chemistry 11-29-11 Dalton’s Atomic Theory vs. Modern Atomic Theory

CHEMISTRY: Wow! Pennies turned to gold? Tell me again – how you could you prove that it was or wasn’t? Hey – what a lot of theory today! So the smallest thing that can be that thing is an atom. How do we know that? Well, we have to start at the beginning, and that’s Dalton’s Atomic Theory. Great job today comparing it with the Modern Atomic Theory. Keep those examples in mind when you’re studying for the test – especially when it comes to explaining those laws.

Did you hear about the make-up lab change? It will be this Thursday at 7:15 A.M. – last one of the year!

By the way – when you listen to the vodcast, that awful clicking noise you hear just might have to do with my necklace sliding back and forth across the mic. Sorry about that! πŸ™‚

Physics 11-18-11 Law of Conservation of Energy

PHYSICS: So why is the first hill of a roller coaster always the highest? Here’s the lecture from Monday on the conservation of energy. Great job on the concepts and problems today – let’s put it to practice next week, and even this weekend on that take-home lab. Hey, if you were to design a roller coaster, what would it look like?!? πŸ™‚

flickr photo by thecrypt