Chemistry 213 Presentations: Chemistry of the Environment Objective - - PDF document

Chemistry 213

Presentations: Chemistry of the Environment

Objective Group PowerPoint presentation on a topic related to Chemistry of the Environment (Chapter 18, Brown, LeMay & Bursten). Steps to a successful group presentation:

• 1. Brainstorm about the topics within the assigned chapter. Keep in mind that you

have to be able to explain the "big picture" behind the real world connection within the limits of this one presentation. You will also have to relate your topic to relevant chemistry concepts.

• 2. Research your topic (infoseek, current contents, other on-line databases through

the library, books, articles, web, encyclopedias, dictionaries).

• 3. Decide how you want to present your topic.
• 4. Crucial parts to your presentation
• Creativity will be rewarded by your instructor
• All of the group members must contribute during the presentation
• Good presentations use color & large readable fonts
• Good presentations are enhanced with special effects such as animations
• Good presentations use pictures and diagrams with descriptor words
• Short lists and brief phrases are better than complete sentences
• Good presentations typically have relevant eye-catching title/headings
• Must present chemistry behind specific topic that you present
• Explain chemistry topic in an interesting, understandable, and organized

fashion at the appropriate level for the class

• 5. Keep in mind:
• Introduction and summary statements can be helpful at the beginning and end
• f the presentation. Remember to keep them short and concise.
• Provide all references used to develop presentation (DO NOT PLAGERIZE).

These should be the last slide of the presentation.

• Books: Hart, M. A.; Hink, B. C. "Book Title"; Wiley & Sons: New York,

1997.

• WWW: Provide main URL and author (make sure that it works when you

are not in the site)

• Journal Articles: Black, J. E.; Smo, M. A. Journal Title 1997, volume #, p

1679-1689. Article Title: "A Lot of Chemistry Stuff"

• It should take you about 8-12 minutes to present your PowerPoint show. The

show should consist of 6 to 12 slides.

• The audience may ask questions at the end of your presentation.

Evaluation of Presentation:

• On the day of the presentations, you will present your presentation to the

laboratory section. Each presentation should take about 8-12 minutes with all group members speaking/participating during the presentation.

• Your presentation will be evaluated on the criterion listed below.
• The instructor will determine the group presentation grade. Individual

grades will be determined using the Group Contribution Forms (see below) and the Pre-lab.

• The individual lab score will count for a total possible of 20 points.

Assignment/Selection of Presentation Topic: The lab instructor will randomly assign a selection order of topics for the groups in the lab section. The groups will choose (in order) one of the following topics. You should discuss the topic preferences with members of your group before-hand. The lab instructor will then randomly assign a presentation order.

Acid Rain The Greenhouse Effect Waste Water Treatment DDT in the Environment Radon Photochemical Smog The Antarctic Ozone Hole Green Chemistry Dissolved Oxygen and Water Quality

Ratings of Group Presentations Title:______________________________________________

Presentation scores will be based on the group performance as a whole rather than performances by individuals. Under each presentation area is a list of important factors to be

• considered. Comments and Area Scores will be circled by the evaluator to reflect the group

performance (see ratings below).

Rating: Excellent (10), Good (8), Ordinary (6), Marginal (4), or Deficient (2)

Name of Students:______________________________________________________________ Group :____________ Date:__________ Final Score:___________________ Group Presentation Area Comments Presentation Area Score Introduction: Attention grabbing? Goals/purpose stated?

• Group did an excellent, good, ordinary, marginal, or

deficient job getting audience attention.

• Goals/purpose: excellent, good, ordinary, marginal, or

deficient. 10 9 8 7 6 5 4 3 2 1 Content: Creative? Chemistry clearly explained? Scientific level appropriate? Organized? Smooth flow?

• Content was creatively presented in an excellent, good,
• rdinary, marginal, or deficient fashion.
• Presentation was excellent, good, ordinary, marginal, or

deficient in organization.

• Chemistry concepts were clearly explained, and at the

appropriate level (excellent, good, ordinary, marginal, or deficient) 10 9 8 7 6 5 4 3 2 1 Team Attributes Eye contact? Energy? Full participation?

• All (10), most (6), or few (2) of the group members presented

information equally and in a smooth fashion.

• Group showed excellent, good, ordinary, marginal, or

deficient energy and had excellent, good, ordinary, marginal,

• r deficient eye contact with the audience.

10 9 8 7 6 5 4 3 2 1 Illustration (Pictures and/or demonstrations): Creative and eye pleasing? Useful? Neat? Organized?

• Illustrations were neat and organized.

(excellent, good, ordinary, marginal, or deficient)

• Ilustrations were eye pleasing and creative.

(excellent, good, ordinary, marginal, or deficient)

• Illustrations added to the understanding of the topic.

(excellent, good, ordinary, marginal, or deficient) 10 9 8 7 6 5 4 3 2 1 Conclusion Summarized information? Provided references?

• Summary of information was excellent, good, ordinary,

marginal, or deficient.

• References were excellent, good, ordinary, marginal, or

deficient. 10 9 8 7 6 5 4 3 2 1 Overall Quality of Presentation

• Overall quality of the presentation was excellent, good,
• rdinary, marginal, or deficient.

10 9 8 7 6 5 4 3 2 1

Group (Presentation) Contribution Form

Group Number: _______ Group Topic:_____________________________________________________ Assessor Name (Student):____________________________________________ Please write the names of all of your group members below, including yourself, and rate the degree to which each member fulfilled her/his responsibilities for completing the necessary steps for a successful

• presentation. These forms will remain anonymous. They will be collected separately after your
• presentation. Although these will remain anonymous, you are encouraged to approach group members who

are not meeting the group expectations prior to and during the presentation date. The possible ratings are as follows: Very Good (5) Consistently did what she/he was supposed to do, very well prepared and cooperative Satisfactory (4) Usually did what she/he was supposed to do, acceptably prepared and cooperative Ordinary (3) Often did what she/he was supposed to do, minimally prepared and cooperative Marginal (2) Sometimes failed to show up or contribute to group planning and discussions Deficient (1) Consistently failed to show up or contribute to group planning and discussions No Show (0) No participation at all These rating should reflect each individual's level of participation, effort, and sense of responsibility, not her or his academic ability. Group members with legitimate excuses for missing group meetings can make up her/his missed contribution by contributing more to other tasks. It is up to the group to determine a fair process. The maximum presentation score that an individual can earn is the group

• grade. Individuals that perform at an ordinary or below rating will have a lower score than the group

grade.

• 1. Your Full Name:__________________________________________ Rating: ____________________

Brief Explanation for rating:______________________________________________________ ______________________________________________________________________________________

• 2. Group Member Full Name:_________________________________ Rating: ____________________

Brief Explanation for rating: _____________________________________________________ ______________________________________________________________________________________

• 3. Group Member Full Name:_________________________________ Rating: ____________________

Brief Explanation for rating: _____________________________________________________ ______________________________________________________________________________________ Your signature:_______________________________________ Date: _____________________

Presentations: Chemistry of the Environment

Pre Laboratory Assignment Name________________________ Section_______________________ Date_________________________ The Sun emits radiant energy over a wide range of wavelengths. The shorter- wavelength, higher-energy radiations in the ultraviolet range of the spectrum are sufficiently energetic to cause chemical changes. One of the most important processes

• ccurring in the upper atmosphere above about 120-km elevation is the photodissociation
• f the oxygen molecule:

O2(g) + hv  2O(g) The minimum energy required to cause this change is determined by the dissociation energy of O2, 495 kJ/mol . Calculate the longest wavelength photon having sufficient energy to dissociate the O2

• molecule. (See Chapters 6 & 18 BLB.)