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## Q1: week 3 – 9/12 – 9/16

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Â ” The first day of class should connect to the last day and every day in between!”
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Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Who has good video of last Friday’s Demo?Â  Â n
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Everyone needs to join Remind for class.Â  Click me to sign up.Â Â  Â
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9/12 – Monday “A” Day –Â

Main focus:Â

1. To Round calculates values either by the Accuracy Rule or the Precision Rule.
2. To Round a conversion correctly.
3. To Identify constants as numbers that are not considered for rounding.
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PeriodÂ  9:
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1.Â  We will review the homework form based on the following worksheet.Â Â
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Measurement and Sig Figs â€“ RAT 4 â€“ 22-23.pdf
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2. Quick review of significant figures and their origin (measurements!!)
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3.Â  We will spend more time reviewing and understanding how and why we round using significant figures (Accuracy Rule) and decimal places (Precision Rule) using the worksheet handed out last Thursday and our class notes.
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Â  Â  Â  Â a) We will also revisit the metric conversion worksheet 2 – AND NOW round correctly!!!!
Â  Â  Â  Â  Â  Remember that we only compare sig figs with measured value. Constants like 3.14 are not used toÂ  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  determineÂ  the rounding.
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sig fig ditto1.pdf
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sig fig ditto1 key.pdf
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metric conversions 2 step key ROUNDing.pdf Â Â  Â Â  Â Â  Â Â  Â Â  Â Â  Â Â  Â Â  Â Â  Â Â  Â Â  Â Â  Â Â  Â Â  Â Â  Â Â  Â Â  Â Â  Â Â  Â Â  Â Â  Â Â  Â Â  ViewÂ Download
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4.Â  Lab Safety Lesson – Review the safety equipment in the school and describe the Lab Safety Assignment.
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Lecture 1.5 : How we round in calculations Â – Todays lesson

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9/12 –Â  MondayÂ  “A” Day Homework:Â  Due tomorrow by 5:00 am
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1.Â  Please complete the form below based on the worksheet below. Readiness Assessment Test 5,6 – Lect 1.5 22-23.pdfÂ Â
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Readiness Assessment Test 5,6 – Lect 1.5 22-23.pdfÂ Â
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2.Â  Please complete the Lab Safety Assignment by following the instructions below:Â Â  DUE THURSDAY, 9/15!Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â Â

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1: Measurement and Significant Figures Form :

2: Â Lab Safety Lesson Use the Lab safety contract pdf that is posted below to complete this activity or the hardcopy I gave you in class.
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Regents Chemistry Safety Contract .pdf
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In this activity, you will write the safety rule (just one sentence) ,its number from the safety contract (that I gave you and is posted below), Â AND WHERE IN THE VIDEO (: timecode) that is demonstrated in four safetyÂ videos. Â You needÂ 10 different safety rules and you must use 4 out of the 6 videos. This means if you find 7 in the first video youÂ will need 1 each from the three others to successfully complete the activity. Â There are many other combinations butÂ you must use 4 videos and you must have 10 different Safety rules written total.
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Let me restate: You must find 10 unique safety rules throughout the four of the six videos of your choosing.Â
YOU MUST ALSO IDENTIFY BY TIMECODE WHERE IN THE VIDEO THE SAFETY RULE IS BEINGÂ
DEMONSTRATED, DISCUSSED, OR INFERRED.
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Â  Â  Â  Â  Â  Â  Â  Â  Â  1: Jefferson High VIDEO – #45. Examine glassware before each use. (3:23)
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I Â know what #’s each video covers and where thus will grade your work based on this accuracy.
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The video playlist is posted above the lab safety form for your convenience.
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Lab Safety Video playlist:Â

Click on icon on upper right to view the playlist.

As you may have figured it might be easier to write you responses in a word doc then cut and pasteÂ it into the form when you are done. This way you have a record which might come useful if there is a issue with submitting.Â  Â  Â
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2:Â  Safety Form:

Â  Â  Â _______________________________________________________Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â Jump toÂ

9/13 – Tuesday “B” Day – LabÂ  –Â

Main focus:Â

1. To identify measurements with the least significance or precision
2. To round calculations based on the accuracy rule or the precision rule.
3. To identify unknown metals by measuring, calculating their density, rounding correctly, and using table S.
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PeriodÂ  8:
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1.Â  We will review last nights form – Measurement and Significant Figures Form 2.
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Readiness Assessment Test 5,6 – Lect 1.5 22-23.pdfÂ Â
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2. Complete the bottom questions of the sig fig ditto.pdf – Specifically we will use scientific notation to help round number that would normally be impossible.
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sig fig ditto1.pdf
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sig fig ditto1 key.pdf

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PeriodÂ  9:Â  Â  Â  Â  Â

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1: Continue with Lab 1
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Â  Â  Â  a) Calculate Volume and Density.Â Â
Â  Â  Â  b)Â  Determine the Percent error
Â  Â  Â  c)Â  Identify the metals
Â  Â  Â  d)Â  Write a conclusion – requirements
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LAB 1 Density of Solids.pdf
View DownloadÂ Â Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â Â

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Today’s NOTES: from the Class NotesÂ
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Scientific Notation and rpunding-
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9/13 –Â  TuesdayÂ  “B” Day Homework:Â  Due tomorrow by 5:00 am
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1.Â  Please study for a CAT quiz on all concepts we have learned from day 1. It might be helpful to study by re-doing some of the forms (homeworks). I have keys posted below and blank copies
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Readiness Assessment Test 5,6 – Lect 1.5 22-23.pdfÂ Â
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Readiness Assessment Test key 5,6 – 22-23 .pdf
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Measurement and Sig Figs – RAT 4 – 22-23.pdf
ViewÂ DownloadÂ  Â Â Â Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â Â

Â  Â _________________________________________Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â Jump toÂ

9/14 – Wednesday “A” DayÂ

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Main focus:Â
1. To Take a CAT – Comprehensive Assessment Test (in person quiz) on all metric conversions, measurement, and significant figures (and rounding);

PeriodÂ  9:Â

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1. CATS are worth 4 RATS!Â  So it is a quiz that is 4x greater than a single form.
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A CAT IS AN IN CLASS QUIZ!!!Â

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Â 9/14 –Â  Wednesday – “A” Day homework: –
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1. Â If you need to complete the safety assignment posted under Monday this week (above !) please complete it as it due Tomorrow 9/15!
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2. If you have completed the Lab safety assignment then THATS IT!Â  Â

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Connect

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9/15 – Thursday “B” Day – Lab –Â

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Main focus:Â  Â
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1. To complete the CAT 1 Measurement Quiz.
2. To begin Lab 2 – Density of Coke and Diet Coke.
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PeriodÂ  8, 9:Â  LAB 1Â  – due Today!
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1. To complete the CAT 1 from yesterday. I will give you a new last page with questions 9 and 10 with a new ticket (for those questions) as I had a mistake on yesterday’s quiz.
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2. To begin Lab 2 – Density of Diet Coke and Coke.
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LAB 2 Density of Liquids – Coca Cola .pdf
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9/15 –Â  Thursday – “A” Day homework:Â
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1. Â Please complete the conclusion questions on Lab 2 if you did not complete it today in class.

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Connect

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9/16 – Friday “A” DayÂ

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Main focus:Â  Â
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1. To distinguish between chemical and physical changes.
2.Â  To identify Physical intensive and Physical Extensive properties of matter
Standard 1 – S1.1 – use theories and or models to explain observations
Standard 4 – 3.2 i – distinguish between chemical and physical changes
Standard 4 – Performance Indicator
3.2a – A physical change results in the rearrangement of existing particles in a substance. A chemical change results in the formation of different substances with properties.
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PeriodÂ  9: –

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1. Part 1 Lesson – Chemical vs Physical Change Lesson (same as lecture 1.6) posted below.
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a) work on the first side of the worksheet (teacher modeling)
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b) bubble demos.
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2. Complete the backside of the worksheet as directed by me in the video.
3. Review with a key
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Classification Properties Ditto 2011.pdf
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Classification Properties Ditto key.pdf

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Chemical vs. Physical:Â  Today’s lesson – part 1

Â  Â 9/16 –Â  Friday – “A” Day homework: –
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1. Please watch Lecture 1.6 – Chemical vs. Physical Change posted above.Â Â
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2.Â  Complete the Classification Properties Ditto 2011 and review with key.
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Classification Properties Ditto 2011.pdf
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Classification Properties Ditto key.pdf
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3. Â Complete the form below:Â  You have a total of three submissions due Monday morning at 5:00 am.

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The form is posted below.
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Connect
Â 3: Classification Properties RAT 1.6 Form:

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End of week 3!