CHEMISTRY – Hey guys, so is all the info on SI measurements starting to come back to you? Here’s the lecture from Wednesday. 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? 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 Wednesday, Sept. 3.

CHEMISTRY 8-27-14 Si Measurements from Tammy Skinner on Vimeo.

flickr photo by Nils Geylen

CHEMISTRY – Great fun with Oobleck today! Were you successful in using the scientific method?

Happy day, happy day, you got a textbook today! Books covers are due Friday – remember, no book socks.

Have you double checked Edline to make sure that you are good with all the lab assignments you are supposed to have turned in? BE SURE if you go back and make any changes that you write me a note about it and put the note in the Make-Up Work tray. Otherwise I won’t know you’ve changed anything. Come and talk with me if you have questions!


CHEMISTRY – Hey guys, here’s the lecture from Monday on 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.

Speaking of that, 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 tomorrow!

Speaking of homework – the work from the textbook can be done with the online textbook. Do it on notebook paper, and you can use the back. Just make sure you number going down and not across, and skip a line between each question. Be sure and turn it in at the beginning of class tomorrow.

CHEMISTRY 8-25-14 The Scientific Method from Tammy Skinner on Vimeo.

Flickr photo by UK Ministry of Defense, Photographer: Harland Quarrington

CHEMISTRY: Great job in lab this week! Wow – you’ve learned a lot!! God bless you as you finish up studying for tomorrow’s test! In addition to the lab safety packets and the lab safety video, don’t forget to study all the lab apparatus – be able to identify it all and know what all the apparatus is used for. Know the parts of the balance and the Bunsen burner. Also, 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. Also, make sure you can draw and label diagrams for filtering, boiling, evaporating, and heating intensely. Go back and view the earlier posts/slide shows on Lab Apparatus, Lab Tour, Lighting a Bunsen burner, etc. All of these are VERY helpful for the test!!

Don’t forget that the entire Exp A-1 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


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. So lets work on that this year. Did all the info on types of proportions and graphs come back to you?

Looking forward to seeing what you do with the lab tomorrow! :)

PHYSICS 8-20-14 Analyzing Data 2 from Tammy Skinner on Vimeo.

Image source

PHYSICS: 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..

When you multiply or divide, the number in the problem with the fewest sig figs determines the number of sig figs in the answer. When you add/subtract, the number in the problem with the lowest decimal value determines the place of the last sig fig in the answer. And remember, you never go by counting numbers or conversion factors. Don’t forget to show all your work!

PHYSICS 8-19-14 Measurements in Experiments, Pt. 2 from Tammy Skinner on Vimeo.

flickr photo by jambe

CHEMISTRY – Great job lighting Bunsen burners today! Did anyone happen to see a green flame when you put the copper wire in the flame? Wonder why???

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

And tomorrow we’ll continue with Part 6. 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!!!

CHEMISTRY: First day in the lab! Did you remember what you thought you remembered about massing with a balance and measuring volume with a graduated cylinder? Here are the few notes from today – an overview of the safety equipment in our lab.

Don’t forget there are three things due tonight saved to your Assignment Turn In folder: Lab Apparatus, Lab Safety Rules, and the sample Word document with a picture from your cell phone inserted into it – and the whole thing converted to a PDF. Read the Technology 101 sheet if you need help!

Bunsen burner tomorrow! Be sure and read that part of the lab so you will know exactly what to do!!!

CHEMISTRY 8-18-14 Measuring Mass & Volume from Tammy Skinner on Vimeo.

PHYSICS – Hey guys, here’s part 1 of the overview we did on the SI system. 27 out of 70 slides isn’t bad, is it? :)

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. If you need to re-do any of the problems so they are in the correct format, that’s fine! We’ll finish reviewing sig figs on Tuesday. Happy, happy!

Have a wonderful weekend and senior retreat!!!

CHEMISTRY: Wow! What an awesome week!! Do you feel like you have information overload!? Here’s the basic list of things that are due and when.

Be sure and print out the LAB: Techniques & Procedures and bring it to class on Monday! You’ll find it under the lab tab at the top of this page.

  • Lab Apparatus Drawing due by midnight on Monday – scanned into your Assignment Turn In Folder in Google Drive
  • Lab Safety Rules signed and dated due by midnight on Monday – scanned into your Assignment Turn In Folder in Google Drive
  • Cell phone photo inserted into Word doc, and then that saved as a PDF – uploaded to your Assignment Turn In Folder in Google Drive – due Monday midnight
  • Complete all the rest of the instructions on the Technology 101 sheet except for – we’ll do that next week.

Here is the video on lab safety video we watched in class today. It is a ton of info, and the thing is, you absolutely must know it – and not just for the test, but also throughout the year in lab. It’s a really good idea to watch it again and take notes as you go.

The test on Lab Safety & Procedures will be next Friday, August 22.

Have a great weekend!!!

Starting With Safety from Saddleback Chemistry on Vimeo.


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