February 2008 Teacher's Guide Table of Contents



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February 2008

Teacher's Guide Table of Contents


About the Guide 3

Student Questions 4

Answers to Student Questions 6

ChemMatters Puzzle: DIAL-A-COMPOUND 9

Answers to DIAL-A-COMPOUND 12

NSES Correlation 13

Anticipation Guides 14

The Forensics of Blood 14

How Chemistry Helps Make Blood Transfusion Safer 15

Rebreathers 16

The Not So Simple Life of Filters 17

“Follow the carbon.” Follow the What? 18



Content Reading Guides 19

The Forensics of Blood 20

How Chemistry Helps Make Blood Transfusions Safer 21

Rebreathers 22

The Not So Simple Life of Filters 23

“Follow the carbon.” Follow the What? 24


The Forensics of Blood 26

Background Information 26

Connections to Chemistry Concepts 27

Possible Student Misconceptions 28

Demonstrations and Lessons 28

Student Projects 30

Anticipating Student Questions 30

References 31

Web Sites for Additional Information 31


How Chemistry Helps Make Blood Transfusion Safer 32

Background Information 32

Connections to Chemistry Concepts 35

Possible Student Misconceptions 36

Demonstrations and Lessons 36

Student Projects 37

Anticipating Student Questions 37

Web Sites for Additional Information 38



Rebreathers 39

Background Information 39

Connections to Chemistry Concepts 41

Possible Student Misconceptions 42

Demonstrations and Lessons 42

Student Projects 43

Anticipating Student Questions 44

Web Sites for Additional Information 45


The Not So Simple Life of Filters 49

Background Information 49

Connections to Chemistry Concepts 54

Possible Student Misconceptions 55

Demonstrations and Lesson 55

Student Projects 55

Anticipating Student Questions 56

References 56

Web Sites for Additional Information 56

Follow the Carbon.” Follow the What? 58

Background Information 58

Connections to Chemistry Concepts 62

Possible Student Misconceptions 62

Demonstrations and Lessons 62

Student Projects 63

Anticipating Student Questions 64

References 65

Web Sites for Additional Information 65

About the Guide

William Bleam, Donald McKinney, Mark Michalovic, and Ronald Tempest, TG Editors, created the teacher’s guide article material.


Susan Cooper prepared the national science education content, anticipation, and reading guides.
Patrice Pages, ChemMatters Editor, and Terri Taylor, CM Administrative Editor, coordinated production and prepared the MS Word and PDF versions of the Guide.

chemmatters@acs.org
David Olney created the puzzle.

djolney@rcn.com


Articles from past issues of ChemMatters can be accessed from a CD that is available from the American Chemical Society for $20. The CD contains all ChemMatters issues from 1983 to 2003.
The 2006 ChemMatters Print Index can be purchased for $12 and covers all issues from 1983 to 2006.
A special CD/Index Package can be purchased for $25 by calling

1-800-227-5558.
Purchase information can be found online at: www.acs.org/chemmatters


Student Questions



The Forensics of Blood

  1. What are two examples of tests that can be done to detect blood at a crime scene?

  2. How can an investigator distinguish between human and non-human blood?
  3. What makes the difference between blood samples of type A, type B, AB or O?


  4. What test is used to identify blood types? What principle is utilized to make the test?

  5. Why is blood so sticky?

  6. What is the difference between plasma and whole blood?

  7. What is the difference (in terms of function) between a red blood cell and a white blood cell?

  8. Is a platelet a cell like red and white blood cells? What is the function of platelets?


How Chemistry Helps Make Blood Transfusion Safer


  1. Why can’t human blood simply be transferred from one person to any other person?

  2. What are the advantages of plastic bags for collecting and storing blood (compared with glass bottles that used to be used)?

  3. What is the difference in storage life for blood that is at room temperature versus refrigerated blood versus frozen blood?

  4. How are viruses detected that may be present in donated blood?

  5. What determines blood types A, B, AB and O?

  6. What is the difference between the function of red blood cells and platelets?

  7. How might nitric oxide gas be used to monitor the age and quality (condition) of donated blood?


Rebreathers


  1. What is the function of a rebreather?

  2. What does your body do with the inhaled air?

  3. What percentage of the air in each breath we inhale is consumed oxygen?

  4. What percentage of the oxygen we inhale is consumed in each breath?

  5. What is the role of carbonic acid in respiration?

  6. What causes acidosis?

  7. What are the symptoms of acidosis?

  8. What are the components of a rebreathing apparatus?

  9. What can go wrong with a rebreather?
  10. In this article, what do divers and astronauts have in common?




The Not So Simple Life of Filters


  1. What size particles can be retained by a filter paper of a fine grade?

  2. What is the name given to the mass of glass formed in the production of a glass filter?

  3. What material is used to make a ceramic filter?

  4. Name the phenomenon that occurs when particles that are being filtered bind with the filter’s surface.

  5. Pressure is required in what kind of filtering system?

Follow the Carbon.” Follow the What?




  1. What is an organic compound?

  2. What is the simplest organic compound?

  3. How is this compound produced on Earth?

  4. How might this compound be produced on Mars?

  5. Did the Viking probes find any organic compounds on Mars?

  6. How many protons and how many neutrons does an atom of carbon-12 have?

  7. How many protons and how many neutrons does an atom of carbon-13 have?

  8. What does GCMS stand for?




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