Chemistry 12-6-19 Polymers

CHEMISTRY: We finally finished the chapter! Did you realize molecules could be that large? And so many of them. But don’t you think polymers are cool? Here’s the lecture for Tuesday.

Some items for contemplation: why are certain plastics recyclable and others not…and what about dishwasher and microwave safe? Hmmmmm…


Image source: http://www.packtech.ca/pb/images/img32161428fffbe41e07.jpg

Physics 12-6-19 Power & the Horsepower Lab

PHYSICS: Great job on the horsepower lab. Not so much noise this time! I’m thinking maybe you don’t have as many physics phrustrations to work out?!? πŸ™‚

So how many horsepower do you have? You found Watts? So how many horsepower is that? Hmmmm…..

Here’s the super short lecture from today on power. Now go forth and conquer the power problems!


flickr photo by Thomas Hawk

Hon Chemistry 12-5-19 Nuclear Reactors, Fission & Fusion

HON CHEMISTRY: Wow! What do you think about fission and fusion? Can you now begin to understand the destructive force of the hydrogen bomb? It’s a fusion bomb! Just another reason you might not want to plan a trip to the sun!!

We put the final touch on a lot today, and guess what? We’ve wrapped up the chapter! How are you doing on studying for the test? It will cover the beginning part of chapter 3 (through average atomic mass) and chapter 21. Did you find the Stuff to Know Sheet?

Practice everything! And did I mention, PRACTICE!! I’ll be praying for you!


Hon Chemistry 12-7-16 Isotopes, Nuclear Reactors, and Fusion from Tammy Skinner on Vimeo.

Chemistry 12-4-19 Molecular Formulas

CHEMISTRY: Hey guys! Awesome job with empirical formulas, and now you’ve conquered writing molecular formulas! Here’s the lecture from Wednesday. It’s just like writing empirical formulas but with a twist at the end!

Have you started preparing for the test? It will be over ALL of chapter – plus the small bit from chapter 3. Be sure and checked out the Stuff to Know sheet for all of chapter 7 under the Test Info tab!


flickr photo by Sebastian Mary

Hon Chemistry 12-4-19 Applications of Radioactive Isotopes, Pt. 2 & Fission

HON CHEMISTRY: Radioactive isotopes all around! Did you ever dream there were so many applications of radioactivity? This is a pic of a test used to check on blood flow through the heart during a stress test. Fun, huh!?

So what’s this about you probably having an radioactive isotope in your house?!? Don’t forget to research how smoke detectors, especially those with Americium, work!


Image source http://www.cedars-sinai.edu

Chemistry 12-3-19 Empirical Formulas

CHEMISTRY: So, would you like to be Greg on CSI? Great work with empirical formulas today!

The hardest part is that it’s not a set formula for you to plug and play, but if you’ll keep in mind that you’re really just looking for subscripts which are just moles, you’ll be able to think it through. Percent to mass, mass to moles, moles to smallest whole number ratio.

Let’s crank it up a notch tomorrow! πŸ™‚


Image source www.dnr.mo.gov/env/esp/images/prettytesttubes.jpg

Physics 12-2-19 Simple Machines

PHYSICS: Did you remember this stuff on simple machines from your physical science days? I don’t think you’ll have any trouble with efficiency and mechanical advantage problems. Give them a whirl and let me know!

How do you think the efficiencies of machines compare? Could you design a method to test that? You don’t need no stinkin’ lab sheets! Do you? πŸ˜‰


flickr photo by AndrΓ© Banyai

Hon Chemistry Half-Life Simulation Lab

HON CHEMISTRY: Hey guys – this is where honors chemistry will post results for the Half-Life Simulation lab. You’ll just list your data from the first data table as a comment – just like you comment every week, except this time you are just listing the data from the first data table.

Remember, you don’t have to use candies; you may use coins or anything else that has two sides. Please note that you are to post the number of “radioactive” nuclides remaining after each toss.

Just to clarify, everything on the lab sheets will go in your lab report on that you will submit as a PDF to Google Drive and TurnItIn.com – Title, Objective, Procedure, Observations (with data table), Conclusion, and Questions. Don’t forget that your graph needs to be either a full page graph that you do on Excel or a similar program, or you can draw a full page graph on graph paper, scan a very clean, sharp copy and copy it into your lab report. And don’t forget that the analysis questions, calculations, graph, etc., go after your conclusion.

Happy counting – and wait until AFTER the lab to snack!! πŸ™‚

M&M's
flickr photo by Jared Browarnik

Hon Chemistry 12-2-19 Half Life

HON CHEMISTRY: So what do you figure is the half-life of a banana? But I digress…. Here’s the lecture for Monday on half-life problems.

Have fun with the half-life simulation lab! Be sure and post your data in the Half Life Lab web post by the time listed on the syllabus. Don’t forget to include pics and your graph! The lab report is to be submitted as a PDF 2X by the due date listed on the syllabus. πŸ™‚


flickr photo by Caro Wallis