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 tomorrow.
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!! 🙂
HON CHEMISTRY: So what do you figure is the half-life of a banana? But I digress…. Here’s the lecture for Wednesday 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. 🙂
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.
Here’s the lecture on Pascal’s law and hydraulics and the like.
CHEMISTRY: Here’s our very short look at the positive tests for carbon dioxide, oxygen, and hydrogen gases for the experiment: Making and Testing for Gases. If you were absent on Wednesday, be sure and watch this vodcast – it’s required before you can do the lab. Make sure you have shown me the three balanced equations you’ll need for the experiment. I think you’ll have lots of fun with this one. 🙂
Photo by Yaoqi LAI on Unsplash
HON CHEMISTRY: Can you guess what it is?/ It’s a picture of uranium ore under UV light. Cool, huh! Here’s the lecture for Tuesday on the properties of radioactive nuclides and the types of radioactive decay.
How’d you like writing writing nuclear equations to represent radioactive decay? Maybe a tad bit easier than writing chemical 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?!?
HON CHEMISTRY: Happy Friday! Here’s the lesson for today. First, a look at some of the homework from last night, and then onward to chapter 21!
Speaking of – welcome to nuclear chemistry! No, really – I think you’ll be surprised how much nuclear chemistry is already a part of your everyday life. And now you know where E=mc2 came from!!
By the way, when you get a chance, read about the life of Marie Cure – fascinating woman of science with an incredible story!
CHEMISTRY: Are you surviving the snow? Thursday and Friday you’ll be working on practicing memorizing and using the 17 types of chemical reactions.
Thursday: Do the ODD questions on Balancing Equations Worksheet 3. You can either answer on the worksheet, or you can answer on notebook paper. If you answer on notebook paper, skip a line between each equation. To turn it in, make a CLEAN scan of your work and submit as a PDF to your Chemistry shared folder in Google Drive. Include WS 3 Odd in the save as title.
Friday: Do the EVEN questions on Balancing Equations Worksheet 3. You can either answer on the worksheet, or you can answer on notebook paper. If you answer on notebook paper, skip a line between each equation. To turn it in, make a CLEAN scan of your work and submit as a PDF to your Chemistry shared folder in Google Drive. Include WS 3 Even in the save as title.
I miss you! Hope you’re staying safe and warm – and having a lot of fun in the snow, too!
HON CHEMISTRY: Here’s the lesson for Thursday! Isn’t God awesome to give us minds to understand the world around us – even the parts we can’t see!
Today we talk about isotopes and calculating average atomic mass. Make sure you practice all the ways to write nuclear symbols. Also make sure you can use them to determine the number of protons, neutrons, electrons, etc., AND be sure you can use the formula to find average atomic mass!
Here are some answers for tonight’s homework:
#19) 39.95 u
#20) 10.00 u
#34) 9 x 10^12 more dense
Can you believe atoms are that small – and the nucleus even waaaaaay smaller! The thumbnail is a picture of atoms from the IBM Almaden Research Center. These are iron atoms on top of copper. Being able to move atoms around like this was a giant leap in the field of nanotechnology! (Sorry about that, bad pun! 🙂 )
PHYSICS: Good to see some of you today! Here’s our overview of the Chapter 7 test. It will be an open notes test that you’ll take on PowerSchool Learning. First open notes – not open book, not open Internet, not open anything but your brain, your own personal notes, your calculator, and the Lord Jesus.
Time: The test will open at 10:00 A.M. and I’ll close it at 2:00 P.M. You do not need a password. You can have 90 minutes to take the test, but it’s a regular length test so I don’t think it will take that long. Let me know immediately if something isn’t working for you. You will not Zoom in to take the test.
Format: There are 3 sections. First, Multiple Choice. You’ll answer the multiple choice in PSL. If I were you, I’d have notebook paper for scratch work for these. Next, Discussion. You’ll answer these on your notebook paper. There is one that you have to answer, and two others of which you will pick one to answer. Finally, Problems. There are six problems and you’ll pick five to work. Answer these on notebook paper.
How to Turn It In: When you’re finished, you’ll submit your PSL mulitple choice answers only via PSL and you’ll scan your scratch work, discussion, and problems as a PDF and submit them to your Google Drive shared folder. Include in the PDF title, Ch 7 Test. Text me when you’re done and have submitted everything so that I can check to make sure I can see your work.
God bless you as you study and prepare!!