Chemistry 8-22-19 SI Measurements

CHEMISTRY – Hey guys, so is all the info on SI measurements starting to come back to you? Here’s the lecture from today. I’m sure it’s mostly review from your physical science days, but it’s a great opportunity to refresh what you’ve learned and to get ready to begin using it!

Did you remember the prefixes and units? Start work on memorizing them NOW – SI quantities, units, and SI prefixes. For the prefixes, also make sure that you can tell me how many of something in the larger one. (That’s what I explained in class.) The quiz on them will be next Thursday, August 29.


Photo by Franck V. on Unsplash

Chemistry 8-19-19 Using the Scientific Method

CHEMISTRY – Great review today of the scientific method. I know you’ve heard it for umpteen years, but it is super important that you can APPLY what you’ve learned about the scientific method.

Any questions about homework? The work from the textbook can be done with the online textbook. Follow the notes I gave you in class. Do it on notebook paper, and you can use the back of the paper. Just make sure you number listing down and not across – especially if there are a, b, etc., parts – list those down on separate lines, not across the same line. Also, skip a line between each question. Be sure and turn it in at the beginning of class tomorrow.

Speaking of that, tomorrow you’ll be using what you know about the scientific method to analyze a myth that was tested on Mythbusters.

On Wednesday, you’ll have a great chance to practice using the scientific method tomorrow with Ooblek! Make sure you print and read the Oobleck lab sheet and bring it to class Wednesday!

So do animals use the scientific method? Hmmm…..


Photo by Jeremy Perkins on Unsplash

Physics 8-19-19 Analyzing Data & Graphing Exercise 1 & 2

PHYSICS: Are you? A hoarder, I mean. I soooooo don’t want you to be that person that has a million facts crammed in their head, none of which are useful for anything because you can’t apply what you know. Let’s tackle that this year!

Here the last of the review from your old chemistry days – a short look at analyzing data. Speaking of that, are you okay with “Excel” graphs? Any questions? Give it a whirl and let me know!

Web Post Comments & Ideas

In the future, you will probably be taking online classes where you will have to be part of online class discussion groups, and you’ll be graded on your comments and how you participate. Are you having a knowing where to post your web post comment or understanding what a good web post comment is?

Here is a plan that will help you! Your goal is to have STAR Web Post Comments. Hokey title, but maybe it will stick! Click here on the STAR Web Post Comments Idea Sheet under the Worksheets/Handouts tab for ideas for good comments that will receive credit.

Here are some hints:

IMPORTANT: Make double dog sure you write your name in your web post the correct way. If your name/heading is not written correctly, you will not receive any credit for making the web post. Check an earlier syllabus for instructions on how to write your name.

Here’s what you do to post a web post comment:

  1. Click on the title of any web post from the week that I have made for your class.
  2. Scroll to the very bottom of it where it says “Leave a Reply” – you may have to scroll past comments from other people, but you can reply to those also!
  3. Enter your name correctly (check your syllabus) and your email.
  4. Type in your comment (see the info above.)
  5. Type in the Anti Spam characters in the space provided.
  6. Click Post Comment and you are done!

Physics 8-15-19 Measuring in Physics, continued…

PHYSICS: Oh my gracious, I was so excited about getting the mic to work that I forgot to hit record! Here’s an old vodcast of the lesson from today from a couple years ago.

Did you remember sig figs? All this SI and calculations stuff will come back to you before you know it. Holler if we need to practice. Don’t forget to show all your work!

So why can some humans float – or not? Looking forward to seeing what you do with the lab tomorrow! 🙂

Physics 8-18-16 Measuring & Analyzing in Physics, continued… from Tammy Skinner on Vimeo.

flickr photo by jambe

Chemistry 8-15-19 Lab Safety Test

CHEMISTRY: Great job with filtering and evaporating today, and great job in lab this week! Wow – you’ve learned a lot!! God bless you as you finish up studying for tomorrow’s test!

Here’s the review that we went over in class. In addition to the lab safety packets and the lab safety video, this is some VERY IMPORTANT information to study

  • All the lab apparatus at your lab station and in the slide show – be able to identify it all and know what all the apparatus is used for.
  • Know the parts of the Bunsen burner and how to light one.
  • Know the parts of the balance and be able to measure mass with a balance AND volume with a graduated cylinder.
  • I’ll ask you about safety control equipment and where it’s found in the lab.
  • I’ll also have the safety symbols and the information they represent on the test
  • Make sure you can both set up or draw and label diagrams for filtering and evaporating

HUGE HINT: Go back and view the earlier posts/slide shows on Lab Apparatus, Lab Tour, Lighting a Bunsen burner, Measuring Mass and Volume, etc. All of these are VERY helpful for the test!!

Also, don’t forget that the entire Exp: Lab Procedures & Techniques packet (including observations for ALL of the procedures you did as well as ALL of the questions on pages 13 – 18) is due TOMORROW.

God bless you as you study! It’s a ton of information, but you can do it!! I’ll be praying for you!!

Evaporation of salt water

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Physics 8-14-19 Measurements in Physics, Pt. 1

PHYSICS – Great job today with our SI system review! You remembered a lot! Were you surprised at yourself?

The hardest part, I think, will be getting back in the habit of showing all your work, using conversion factors, units, dimensional analysis, sig figs, etc. We’ll finish reviewing measurements and the like tomorrow. Happy, happy!

Chemistry 8-13-19 Measuring Mass & Volume

CHEMISTRY: Did you remember about massing with a balance and measuring volume with a graduated cylinder?

If you need a quick tutorial, here are some of the tips from today – some reminders on how to read the instruments and how far out you carry your measurements, etc.

If you Both the mass and volume measurements are due by Friday. I’ll be at school by 7:45 if, you’d need to come finish up. Also, don’t forget the tons of questions at the end of the packet!

Chemistry 8-13-19 Lighting a Bunsen Burner

CHEMISTRY – Great job lighting Bunsen burners today! By the way, did you happen to see a green flame when you put the copper wire in the flame? The electrons in the copper atoms were being excited and they gave off a green flame. Cool!!

Here’s something you will find useful in the future…everything you wanted to know about a Bunsen burner and how to light it. Be sure and view the slide show BEFORE you take turn in your lab sheets and take the test.

Tomorrow we’ll continue with Parts 4 & 5. Be sure and read ahead before you come to class! Also, make double dog sure you are keeping up with the observations and answering ALL of the questions at the end of the lab on pg. 13 – 18. There are a TON of them!!!