HON CHEMISTRY: So how ’bout those intermolecular forces? Tons of application, from bugs walking on water to little fishes breathing dissolved oxygen.
HON CHEMISTRY – So why is molecular geometry important? What’s the big deal about knowing the correct shape of molecules? Here’s the beginning of the answer! Great discussion today and great job on drawing dipoles. We’ll continue with intermolecular forces tomorrow.
PHYSICS: Great job setting up the Bernoulli problems today. My best hint – Remember the concepts behind the formulas you want to use!!
Here’s Julius Sumner Miller Bernoulli video on YouTube if you missed him in class!
PHYSICS: Were you amazed at the effect of change in surface area on the velocity of water, and especially the pressure of water, flowing through a tube? Thaaaaat explains how a calm ride on a lazy river can turn crazy in just a few seconds!
Today we concentrated on quantitative applications of Bernoulli’s Principle and a few practical applications. Tomorrow we’ll take a look at the problems and a couple more cool ways to apply Bernoulli!!
HON CHEMISTRY: Good job with Lewis structures and molecular geometry! Below is the very brief look at the homework we went over today. Holler if you decide we need to take a longer look, and we can schedule a help session.
Also we began the cLAB: 3D molecules today in class, and this vodcast will give you a head start on that assignment. Be sure and read the lab sheet BEFORE you get too far and especially before you turn in the assignment!!
HON CHEMISTRY: Who knew we’d be doing geometry in chemistry?!? Great job today! Lewis structures, multiple bonds, resonance, and now polyatomic ions and molecular geometry – wow, that’s a lot you’ve conquered in the last few days!
Molecular geometry is super easy. Make sure you know how to draw Lewis structures, then determine the type of ABE structure and you’ve got it. Here’s a copy of Molecular Geometry Shapes – VSEPR handout. Be sure and memorize the shape and the ABE structure that goes with it. Easy-peazy!
Here’s some good advice – don’t take shortcuts. Learn the proper steps on the easier molecules, and you’ll be able to do the hard ones. And if it’s still all Greek to you, don’t worry! Keep practicing and you’ll get it, I promise!! Don’t forget to count electrons and don’t forget CONS!
CHEMISTRY: Great start to a new chapter! I love that you are going to be learning to research some really cool stuff about the elements on the Periodic Table.
Here is the intro the the history of the periodic table and and your short intro to the cLAB: Element Reverse Scavenger Hunt. We’ll pick up with the s-block next week!
HON CHEMISTRY – I just love dots! How are you doing with Lewis structures? If you were absent, be sure and watch this vodcast for some great hints on making Lewis structures easier. And make sure you practice, practice, practice! Warning: before you know it, you’ll be seeing dots everywhere!
PHYSICS: Did you realize that fluids could produce that much force? Make’s you wonder at the awesome way God designed those beautiful under water sea creatures to withstand so much pressure, doesn’t it? This little creature is a lionfish from the waters of Lembeh, Indonesia.
Oh, and here’s the lecture on Pascal’s law and hydraulics and the like.
PHYSICS: So when you were floating in the pool this summer, did you enjoy your fellowship with buoyant forces? 🙂 From Tuesday – Archimedes’ Principle.
Great topic for investigation! Speaking of which – what did you find? When the kid jumped out of the boat, did the water level rise, fall, or stay the same? Hmmmm…..