April 2013 Teacher's Guide Table of Contents



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April 2013 Teacher's Guide
Table of Contents



About the Guide 4

Student Questions
(from the articles) 5


Answers to Student Questions
(from the articles) 7


ChemMatters Puzzle: Trailblazing with the Elements 12

Answers to the ChemMatters Puzzle 14

NSES Correlation 15

Anticipation Guides 16

Living with an Artificial Bladder 17

In the Fog about Smog: Solving the Smog Puzzle on Earth and from Space 18

Ozone: Our Global Sunscreen 19

Barbecue: The Chemistry Is in the Heat! 20

Not Milk? Living with Lactose Intolerance 21

Living with an Artificial Bladder 23

In the Fog about Smog: Solving the Smog Puzzle on Earth and from Space 24

Ozone: Our Global Sunscreen 25

Barbecue: The Chemistry Is in the Heat! 26

Not Milk? Living with Lactose Intolerance 27

Living with an Artificial Bladder 28

Background Information

(teacher information) 28

Connections to Chemistry Concepts

(for correlation to course curriculum) 33

Possible Student Misconceptions


(to aid teacher in addressing misconceptions) 34

Anticipating Student Questions


(answers to questions students might ask in class) 34

In-class Activities


(lesson ideas, including labs & demonstrations) 35

Out-of-class Activities and Projects


(student research, class projects) 37

References


(non-Web-based information sources) 37

Web Sites for Additional Information


(Web-based information sources) 39

In the Fog about Smog: Solving the Smog Puzzle on Earth and from Space 42

Background Information


(teacher information) 42

Connections to Chemistry Concepts


(for correlation to course curriculum) 51

Possible Student Misconceptions


(to aid teacher in addressing misconceptions) 52

Anticipating Student Questions


(answers to questions students might ask in class) 52

In-class Activities


(lesson ideas, including labs & demonstrations) 53

Out-of-class Activities and Projects


(student research, class projects) 54

References

(non-Web-based information sources) 54

Web Sites for Additional Information

(Web-based information sources) 55

Ozone: Our Global Sunscreen 57

Background Information


(teacher information) 57

Connections to Chemistry Concepts


(for correlation to course curriculum) 72

Possible Student Misconceptions


(to aid teacher in addressing misconceptions) 72

Anticipating Student Questions


(answers to questions students might ask in class) 73

In-class Activities


(lesson ideas, including labs & demonstrations) 74

Out-of-class Activities and Projects


(student research, class projects) 75

References


(non-Web-based information sources) 75

Web Sites for Additional Information


(Web-based information sources) 76

Barbecue: The Chemistry Is in the Heat! 79

Background Information


(teacher information) 79

Connections to Chemistry Concepts


(for correlation to course curriculum) 103

Possible Student Misconceptions


(to aid teacher in addressing misconceptions) 103

Anticipating Student Questions


(answers to questions students might ask in class) 104

In-class Activities


(lesson ideas, including labs & demonstrations) 104

Out-of-class Activities and Projects


(student research, class projects) 105

References

(non-Web-based information sources) 106

Web Sites for Additional Information

(Web-based information sources) 107

General Web References 110



Not Milk? Living with Lactose Intolerance 112

Background Information


(teacher information) 112

Connections to Chemistry Concepts


(for correlation to course curriculum) 121

Possible Student Misconceptions


(to aid teacher in addressing misconceptions) 121

Anticipating Student Questions


(answers to questions students might ask in class) 122

In-class Activities


(lesson ideas, including labs & demonstrations) 122

Out-of-class Activities and Projects


(student research, class projects) 123

References


(non-Web-based information sources) 123

Web Sites for Additional Information


(Web-based information sources) 124

More Web Sites on Teacher Information and Lesson Plans 125


About the Guide

Teacher’s Guide editors William Bleam, Donald McKinney, Ronald Tempest, and Erica K. Jacobsen created the Teacher’s Guide article material. E-mail: bbleam@verizon.net


Susan Cooper prepared the national science education content, anticipation guides, and reading guides.
David Olney created the puzzle.

E-mail: djolney@verizon.net


Patrice Pages, ChemMatters editor, coordinated production and prepared the Microsoft Word and PDF versions of the Teacher’s Guide. E-mail: chemmatters@acs.org

Articles from past issues of ChemMatters can be accessed from a CD that is available from the American Chemical Society for $30. The CD contains all ChemMatters issues from February 1983 to April 2008.

The ChemMatters CD includes an Index that covers all issues from February 1983 to April 2008.
The ChemMatters CD can be purchased by calling 1-800-227-5558.
Purchase information can be found online at www.acs.org/chemmatters

Student Questions
(from the articles)



Living with an Artificial Bladder


    1. What caused kidney failure in Luke Massella?

    2. How was Luke’s new bladder produced?

    3. List two reasons that scientists want to be able to engineer replacement organs and tissues rather than use transplants?

    4. What are the two essential components of an engineered organ?

    5. What two materials are often used for making the scaffold?

    6. Why is the collagen, used in making a scaffold, combined with the chemical, glycosaminoglycan?

    7. List three key properties shared by the different polymers used in organ scaffolds.

    8. What is the challenge in engineering more complex organs compared with building a bladder, wind pipe, or knee cartilage?



In the Fog about Smog: Solving the Smog Puzzle on Earth and from Space


    1. According to the article, when did the first serious smog incident occur in Los Angeles?

    2. Name the NASA satellite that is responsible for monitoring smog from space.

    3. Name the chemist who is credited in the article with spearheading the effort to determine the gases involved in smog and what was his background?

    4. What are the three substances that usually make up photochemical smog?

    5. Why is Los Angeles especially prone to smog events?
    6. What are three of the steps taken by the U.S. following the LA smog attacks to alleviate severe smog incidents?


    7. Of the monitoring instruments aboard the NASA satellite, which one tracks ozone?



Ozone: Our Global Sunscreen


    1. In the simulation of the Earth’s atmosphere described in the article, what was “removed” from the atmosphere?

    2. In that same simulation, what did the researchers add to the atmosphere?

    3. How much of the Earth’s ozone layer disappeared by 2065 during the simulation?

    4. Which chemical element in CFCs is identified in the article as the element involved in destroying the ozone layer?

    5. How many atoms of oxygen make up a molecule of ozone?

    6. Who first measured the wave lengths of UV light reaching the Earth’s surface?

    7. Name the international agreement that limits the production of CFCs.



Barbecue: The Chemistry is in the Heat!


  1. Name two ways people might enhance the flavor of meats used for grilling.

  2. According to the article, what one factor is most responsible for the flavors that occur from grilling meat?

  3. Describe the process of combustion.

  4. What happens to wood as it burns in the barbecue pit?

  5. What two things happen to some of the gaseous molecules that condense on the heating meat?

  6. Describe what two events occur to the meat as the temperature of the barbecue pit increases?

  7. Name the process that occurs in proteins as the meat grills. Describe the changes that occur in the process.

  8. What are the results of the Maillard reactions?

  9. Explain how marinades work.

  10. Why do marinades contain oils, herbs and spices?
  11. Name three ways to make barbecued meat healthier and explain how each works.



Not Milk? Living with Lactose Intolerance


  1. What symptoms can a person with lactose intolerance experience when they consume dairy products?

  2. What is lactose?

  3. What is lactase?

  4. What causes lactose intolerance?

  5. Describe what happens if undigested lactose passes into the large intestine.

  6. Describe two ways that we can test for lactose intolerance.

  7. How are people with lactose intolerance able to consume dairy products?





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