Sunday 31 October 2021

Tuesday 26 October 2021

Three PINK mystery liquids

 


What is the identity of the three pink liquids?  Write/draw your procedure in cartoon format and upload your observations in form of photos.  Explain your findings using vocab words from our chem unit: acid, base, salt, indicator, neutralization, pH, equation. 

EVALUATION   IS OUT OF 25 IN TOTAL and you may work in a group of two or three
5
presentation is out of 5.  for 5/5 it is typed  with illustrations or photos .    
 for 4/5 it is pretty good but there are a few spelling mistakes.  for 0-3 out of 5 it is in pencil or messy.  I prefer this to be printed

10
Clear writing is out of 10.  for 9/10 or 10/10, it is written with no English mistakes and it clearly communicates each part of the lab report.    7-8/10  it is very well written     for 5-6/10 some parts are not so clear and the reader must guess what you are trying to say.  0-4/10, it is minimally communicating what happened

10
Paragraphs are insightful and your observations are well done. this is out of 10.
             9-10/10,   your observations and conclusions are well written and logical.  It is brilliant
              7-8/10   your observations and conclusions are very well done
               5-6   your conclusions don't really logically follow from your results
                0-4   your conclusions are not relating to your results at all
     

ACKNOWLEDGEMENTS
write all names and who contributed what including the % of their contribution. so two people who contributed equally would be50%

Thursday 21 October 2021

Ecology Interlude

 And now we interrupt our chem unit with a dose of ecology! Here is the Ecosystem worksheet

Copies are located at the back of the room.

please view my lecture on ecology and do the worksheet and study this content for the  upcoming  (online open book) quiz next week which will include this content as well as chem content.

Wednesday 20 October 2021

A review of Types of Reactions and an intro to metal oxides and organic compounds

TEACHING NOTES:

First lets review the main types of reactions: 

notes on types of reactions

Chemical reactions may be categorized as follows : 

1.     Synthesis
2.     Decomposition
3.     Single replacement
4.     Double replacement

5.     Combustion
       Cellular Respiration
6.     Oxidation of metals


A Synthesis reaction:
element     +   element    -->    compound




Decomposition reaction:
Compound    -->   element     +     element
Or

Compound --> smaller compound    +   element




DOUBLE REPLACEMENT


single replacement
IN ADDITION TO THE FOUR TYPES ABOVE, THERE ARE ALSO THREE MORE KINDS of reaction TO KNOW: 

Combustion:  combustion may happen to any *organic compound* meaning any compound made of carbon, hydrogen and/or oxygen...
Carbon based compound+ oxygen --> carbon dioxide + water
+ heat and light energy












Cell respiration looks like combustion,
BUT IT IS NOT. YOUR CELLS ARE NOT COMBUSTING.  The carbon based compound in this case is glucose, a simple sugar.

Glucose +   oxygen -->  carbon dioxide + water + energy for cell


Oxidation reaction

Metal +  oxygen   -->   metal oxide

ACID BASE REACTIONS ARE ALL NEUTRALIZATION REACTIONS






In summary....




 

Tuesday 12 October 2021

RATES OF REACTION LAB

    Read the following notes

Assignment : Do the study questions, put your name on it and photograph it.   Answer key is here.

You will be doing a simple two beaker experiment to observe rates of reaction.

Three Mystery Liquids

 You did an experiment with THREE MYSTERY LIQUIDS using a spot place, eye droppers and two indicators: litmus paper and Universal indicator.  Write a lab with all of these elements:  

Your lab must include the following

1.  First and Last names of all investigators
2. Purpose of lab:  write about how this lab illustrates examples of acids, bases, and indicators.  Explain how the lab relates to these substances
3. Materials: write a complete list of materials that we used
4. Procedure: write a step by step procedure (including illustrations if it makes it clearer) that is so well written that another person could read it and replicate your actions exactly
5.  What is the question we are trying to answer?  
6. Results:  Describe in detail what happened after you did the procedure.  Include any photos you took.  


EVALUATION   IS OUT OF 25 IN TOTAL and you may work in a group of two or three
5
presentation is out of 5.  for 5/5 it is typed  with illustrations or photos and emailed to msngscience@gmail.com.     for 4/5 it is pretty good but there are a few spelling mistakes.  for 0-3 out of 5 it is in pencil or messy.  I prefer this to be printed

10
Clear writing is out of 10.  for 9/10 or 10/10, it is written with no English mistakes and it clearly communicates each part of the lab report.    7-8/10  it is very well written     for 5-6/10 some parts are not so clear and the reader must guess what you are trying to say.  0-4/10, it is minimally communicating what happened

10
Paragraphs are insightful and your observations are well done. this is out of 10.
             9-10/10,   your observations and conclusions are well written and logical.  It is brilliant
              7-8/10   your observations and conclusions are very well done
               5-6   your conclusions don't really logically follow from your results
                0-4   your conclusions are not relating to your results at all
     

ACKNOWLEDGEMENTS
write all names and who contributed what including the % of their contribution. so two people who contributed equally would be50%


Monday 4 October 2021

Bohr Diagram

   

We will practice drawing Bohr Diagrams and Lewis diagrams.   You should work through this Study guide on the same topic as well as the worksheet handed out in class.  Finish these two worksheets and upload pics of your covalent compound "cookies" upload them on TEAMS  for 5 marks.