Coming up soon, we'll be watching some video clips as we study the development of the atomic theory.  I'm posting these videos under Class Materials so you can watch them if you are absent, miss something, want to study for a test, and of course, if you just want to jam out to the totally awesome music.  Have fun!

You do not need to do the back page of the density assignment handed out in class today.  Just the density calculations. 

If you'd like practice using scientific notation, here's a good website- you can do a lesson, practice problems, or play a game to learn to use scientific notation.  Scroll down the page to get to the section on scientific notation.

Scientific Notation Help Site

Welcome to chemistry!  Chemistry is the study of matter and its changes but some days it will feel like a math class.  Please bring a calculator to class every day.  Your calculator does not need to be a graphing calculator, but it does need to be a scientific calculator.  This means it has an EE or EXP button. 

Walmart, Target, etc. carry them for around 12 dollars.  If you don't have one, try to get one on sale during the back to school sales.  They will be marked as "scientific" calculators.  Try not to get the ones that say they are for statistics.  Stats calculators will just get you confused.  I like the TI-30xa.  You can also rent a graphing calculator for the year from the media center- a good option if you need one for your math class.