Chemistry 4-23-21 Radioactive Decay

CHEMISTRY: Today has been all about arrows for some reason – well, sideways arrow! So how are you doing with the nuclear equations? Feeling better about them now that you know what side of the arrow to put the particle on? Also, make sure you memorize the nuclear symbols for alpha particles, beta particles (electrons), positrons, neutrons, and protons – those are just as important as the arrow! Need extra help? Help session Friday morning, 7:20ish A.M.

Be sure and bring a calculator Monday – we’ll tackle half life problems! 🙂


Photo by Nick Fewings on Unsplash

Physics 4-23-21 Harmonics & Beats

PHYSICS: So why do instruments that are playing the same note sound so different? Here’s our discussion of harmonics and beats.

Speaking of discussion – what about the Tacoma Narrows Bridge? Could we add on to our explanation? Here’s a link, if you’d like to see it again: Tacoma Narrows Bridge


Photo by Roberta Sorge on Unsplash

Chemistry 4-22-21 Properties of Radioactive Isotopes

CHEMISTRY: So ordinarily it looks like just any old hunk of rock, but this is a picture of uranium ore under UV light. Pretty cool, huh?!? Here’s our beginning discussion of the unique properties of radioactive nuclides. And as a bonus, this vodcast has a head start at looking at nuclear equations. Woohoo!!

Physics 4-21-21 Sound Intensity and Resonance

PHYSICS: All kinds of ways to make music! And great discussion of intensity and resonance! Were you okay with the problems?

Couple of items to apply for further contemplation – so how does the whole hearing thing work? I mean, I know the little bones in your ear move, but why? Is resonance involved? Great item for application/discussion!


flickr photo by Morning Guitar

Hon Chemistry 4-21-21 History of the Periodic Table & cLAB: Element Reverse Scavenger Hunt (s-block notes)

HON CHEMISTRY: Great start to a new chapter! I love that you are going to be learning to research some really cool stuff about the elements on the Periodic Table.

Here is the intro the the history of the periodic table and and your short intro to the cLAB: Element Reverse Scavenger Hunt. We’ll pick up with the s-block tomorrow!

Chemistry 4-21-21 Intro to Radioactivity

CHEMISTRY: Great start to a new chapter! I think you’ll be surprised how much nuclear chemistry is already a part of your everyday life. Also now you know where E=mc2 came from!!

By the way, you ought to read about the life of Marie Cure when you get a chance. Fascinating woman of science with an incredible story!

Lost… Project Web Post Comment

I’m excited to read your projects and find out what you did to survive!! Did you do more than just survive the project? Here’s where you post you comment for the week.

Web post topic – What did you learn from the Lost… Project (this time only, discuss things not related to chemistry). What did God teach you through the project?

Go!

Lost in the Taklamakan – The Last Weekend!!!

I’m praying for you as you finalize working on your project this weekend. I believe in you! You can do it!!!

Lots of good questions and discussion in class today. I’ve posted a vodcast from one of the classes below. And click here for a copy of the Final Notes & Advice Sheet that we talked about in class
Here are a few hints and advice – lots more great stuff in that sheet!

1. Make sure you internally document everything! That includes anything you talk about. Also, make sure your illustrations have an internal documentation on them. (Yes, you have to have illustrations! If you don’t something’s wrong.)

2. As a chemist, you must talk about all 23 items – why they would be good to use or why you would not want to use them. NEVER say you had no use for the item. You will not get credit if you do.

3. Don’t wait to do your Works Cited page last. Do it before you finish the final draft of your paper. It takes a while to compile a Works Cited and if you don’t have one, I cannot accept your paper. It would be better to have a few mistakes in your paper than to not turn in a Works Cited.

4. Save as you go! Go ahead and save a copy of your latest rough draft in your Shared folder – label it rough draft for now. This way, if something happens in your drive or if your computer crashes at the last minute, I’ll be able to see that you have been working on your paper.

5. Get someone that you trust to read over your paper and check it against the project guideline sheet that I gave you – especially the Manuscript Form Checklist. They’ll be able to help you find things you might have left off.

You can do great things! I believe in you and I can’t wait to read your paper!


Image by Walter Frehner from Pixabay

Physics – Another Look at Simple Harmonic Motion & Pendulums

PHYSICS: Our discussion of pendulums seems to have disappeared, so here are a few old vodcasts on simple harmonic motion that might help. The first vodcast below concentrates on spring. The second concentrates on pendulums. The third is a look at an old spring problem.

Simple Harmonic Motion & Springs

Photo by Becca Romine on Unsplash

Simple Harmonic Motion & the Pendulum

flickr photo by sudip