# Chemistry 2-28-22 Stoichiometry

CHEMISTRY: Wow!! Great job today with stoichiometry!! Now it’s time to put everything you’ve learned from the last few chapters together. It’s like cooking – figuring out what you need to get what you want. Slightly different ingredients, though. Don’t forget molar mass and mole ratio!

HW INFO – To find the pages for tonight’s homework, go to the online textbook, open the chapter, and then in the section where you can enter page numbers, enter R109. That will take you to the pages for tonight’s homework.

MAKEUP LABS – Do you have a lab to make up? Check the makeup lab dates on the bottom of the syllabus and let me know when you are coming and what lab you need to make up.

Photo by Monika Grabkowska on Unsplash

# Physics 2-28-22 Pascal’s Law

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.

flickr photo by CW Ye

# Physics 2-25-22 Pressure

PHYSICS: First a look at concepts from Archimedes homework and then our review of pressure. We’ll see what Pascal had to say about pressure on Monday!

So would you like to volunteer to try out the bed of nails? ๐

# Hon Chemistry 2-24-22 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?

Help Session tomorrow morning, 7:30 A.M.

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

# Hon Chemistry 2-23-22 Applications of Radioactivity, Pt. 2

HON CHEMISTRY: Hey guys! Here’s the laaaast of the applications of radioactive isotopes. How are you studying? Be careful and don’t take the test for granted! And donโt forget to check out the the Chapter 21 Stuff to Know & sheet (and yes, there actually is one!).

Make sure you keep practicing 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!

FYI – 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!

# Hon Chemistry 2-22-22 Applications of Radioactivity, Pt. 1

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 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!! ๐

# Physics 2-17-22 Archimedesโ Principle

PHYSICS: So when you were floating in the pool this summer, did you enjoy your fellowship with buoyant forces? ๐ From Wednesday – 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…..

# Hon Chemistry 2-17-22 Radioactive Decay, Cont., & Half Life

HON CHEMISTRY: Great job with nuclear equations. Here’s the last of the types of radioactive decay. Don’t forget to memorize the nuclear symbols for alpha particles, beta particles (electrons), positrons, neutrons, and protons. I think these equations are much simpler than balanced chemical equations!

So what do you figure is the half-life of a banana? But I digress…. Here’s the lecture for Thursday 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. ๐