PHYSICS: See?! I wasn’t kidding about the balancing rocks movement!
🙂
Here’s the lecture from Monday on work and potential energy. And here’s something to think about for tomorrow – why is the first hill of a roller coaster always the highest? Btw – homework for tonight is just to see if you can redo the problems in 11 – 25. We’ll make up for lost time tomorrow!
HON CHEMISTRY: This thumbnail pic isn’t sending any subliminal messages about tomorrow’s test, is it?!? Here’s the last of the info on fission and fusion. Be careful and don’t take the test for granted. It will cover the beginning part of chapter 3 (through average atomic mass), chapter 21, and you will also have a set of chemical formulas to write and name.
How’s your own “stuff to know & know how to do” list coming? Watch the vodcast for some hints, or check out last Tuesday’s post. Could you use some extra practice? Help session tomorrow morning – 7:15ish A.M. And finally, practice everything! And did I mention, PRACTICE!! I’ll be praying for you!
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!? Click on the link below the pic to learn more from Cedars-Sinai hospital.
Here’s the lecture from Tuesday. Let’s finish with fission and fusion when we get back. Speaking of which – Happy Thanksgiving!! I hope you have a wonderful time with your family. I am very, very thankful for you!!
Did you remember that you’ll be taking the test on Tuesday? It will cover the beginning part of chapter 3 (through average atomic mass), chapter 21, and you will also have a set of chemical formulas to write and name.
For chapter 3, check out the Chapter 3a Stuff to Know & Study Suggestions sheet.
For chapter 21, make sure you practice half-life problems and nuclear equations. Also, make sure you’ve memorize the nuclear symbols for alpha particles, beta particles, positrons, neutrons, and protons. And then there are tons of notes on the conceptual stuff. Properties of radioactivity, people, types of radioactive decay, applications of radioactivity, definitions, definitions, and definitions!
Image source http://www.cedars-sinai.edu
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PHYSICS: Great job on the problems today – good connections between work and energy. I think you’ll like using the work-energy theorem, it’ll save you some time and a couple of steps. Don’t forget about friction!
Happy Thanksgiving! I’m so very thankful for you!!
HON CHEMISTRY: Wow! Did you realize radiation was everywhere? It turns out there are some pretty useful applications of radioactivity! Let’s finish talking about that, as well as fission and fusion tomorrow, okay?
Don’t forget to add the half-life problems from the end of the chapter (#26 – 29 I think) to your homework for tonight. Oh, help session needed anytime soon?
PHYSICS: Funny thing about words, all this work you thought you’d been doing, was it? Work, I mean? Great intro to chapter 5! Ben, I think you almost did move the lab station! 🙂 And I think you’ll all do great with the work problems, just remember everything from the last chapter and multiply by d!
BTW – I double checked and you don’t need the little boat cutouts for the thLAB on Efficiency that’s due next Monday, but you do need a super bouncy ball and different types of marbles. Do you need any of these? I’ve got some you can borrow – I think.
flickr photo by *hb19
HON CHEMISTRY: So what do you figure is the half-life of a banana? But I digress…. Here’s the lecture from Friday on half-life problems. Keep thinking these problems through – listen to the story they’re trying to tell you, and you’ll do great.
Have fun with the half-life simulation lab! The post on the lab where you’ll post comments with your data is below. You decided today that your data is due posted here by this Tuesday. The entire lab report is due the Tuesday after Thanksgiving.
The report will go in your lab book – Title, Objective, Procedure, Observations (with data table), Conclusion, and Questions. Don’t forget that your graph needs to be drawn on graph paper, folded in half, and attached in your lab book. It can be stapled or taped.
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 from Thursday. Don’t forget the Polymer Worksheet on the back of the syllabus. Put the answers on a sheet of notebook paper.
Some items for contemplation: why are certain plastics recyclable and others not…and what about dishwasher and microwave safe? Hmmmmm…
Here’s the change in schedule for the different chemistry classes:
1st & 2nd Periods: Test changed to after Thanksgiving. HW this weekend CHANGED to Polymer worksheet, finish lab report for Formula of a Hydrate in lab book, AND print and read Lab: Polymers. You’ll answer the polymer lab on the lab sheets.
7th Period: You voted that the test will still be this coming Tuesday. I think that’s a smart thing! HW this weekend is the same as is on the syllabus, although, if I were you, I’d go ahead and print off the polymer lab. We’ll do that lab after the Thanksgiving break.
Image source: http://www.packtech.ca/pb/images/img32161428fffbe41e07.jpg
HON CHEMISTRY: Hey guys! Here’s the Half-life Simulation Lab. Perhaps a bit safer than the real thing? Unless, of course, you’ve taken someone’s M&M’s and then you could have a whole different kind of meltdown! Someone stop me!
Here’s where you post your results. By the way, the numbers to start with that are listed on the lab sheets are strictly examples. I’d start with something like 200 or so, not a whole lot less. 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. You guys decided in class today that your lab results would be due posted as a comment to this post by the Tuesday BEFORE Thanksgiving. The entire lab report, written in your lab book (graph included!) is due Tuesday afternoon AFTER Thanksgiving.
FYI – Just to clarify, everything on the lab sheets will go in your lab book. Title, Objective, Procedure, Observations (with data table), Conclusion, and Questions. Don’t forget that your graph needs to be drawn on graph paper, folded in half, and attached in your lab book. It can be stapled or taped.
Happy counting – and wait until AFTER the lab to snack!! 🙂
HON CHEMISTRY: Can you guess what it is?/ It’s a picture of uranium ore under UV light. Cool, huh! Here’s the lecture from Thursday on the properties of radioactive nuclides and the types of radioactive decay. It also includes how to write nuclear equations. Don’t forget to memorize the nuclear symbols for alpha particles, beta particles (electrons), positrons, neutrons, and protons. Not nearly as bad as polyatomic ions, huh?!?
🙂
Let’s continue playing with half-life tomorrow! Calculators ready!!
