Assignment 3: The
Presentation
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Objective: Develop an audio-narrated PowerPoint presentation based on the research you have conducted about your chosen molecule/substance.
Assignment Instructions: Using the course project steps completed to date, you will develop your presentation based on the work you submitted for Assignments 1 and 2 as well as the feedback you were given.
To prepare for this assignment, I recommend that you do the following:
- Read these directions carefully.
- Review the grading rubric. The grading rubric is a detailed evaluation that I will use to assess your performance. It will also help you understand what is expected of you as you prepare your assignment
- Message me with any questions!
Presentation requirements:
- Your presentation will be submitted as an audio-narrated PowerPoint. For instructions on how to create audio narration in PowerPoint, see the following link: Record a Slide Show With Narration. Audio narration is a requirement!
- There must be a visual element (e.g., photos, videos, graphs, figures).
- Your presentation must contain approximately 10-15 slides (excluding references) and run approximately 5-10 minutes.
- Please note that less than 10% of your presentation should contain direct quotes.
- Proper use and pronunciation of scientific terminology are required. For help with pronunciation, see this link: Cambridge Dictionary
- Be sure to properly cite your work, both internal to the presentation as well as within the reference slide (this includes photos, graphs, figures, videos, etc.).
- All references listed on the reference slide should be cited internally within the presentation, and vice versa.
- You will submit this presentation to your classmates to review and discuss as a part of the Week Eight Forum.
The required elements: Your presentation should contain the following elements in the order listed below.
In addition, I expect that any feedback provided to you from Assignment 1: Annotated Bibliography and Assignment 2: The Outline be incorporated into this assignment. Please go back and review those comments.
Introduction Slide(s) – ALL
- Molecule/substance Introduction
The common and IUPAC name of your molecule/substance. Please see this link to help with scientific names if needed: IUPAC Nomenclature Of Organic Chemistry.
Where you can observe your molecule/substance in society and/or in nature.
A brief discussion on why you chose your molecule/substance.
If possible, a picture and/or video of you safely observing your molecule/substance in the field. If you cannot safely observe it, please include a couple of images from the internet.
Description
- Description
You must include a physical description. You can use your personal observations from photographs. If you cannot safely observe your molecule/substance, you must research.
Physical Characteristics (appearance, texture, color, odor, melting point, boiling point, density, solubility, polarity, etc.)
Chemical description: You will need to research the chemical properties of your compound/molecule)
Chemical Characteristics (stability in air or other environment, flammability, volatility, etc)
- Discovery
a. Describe the initial discovery of your molecule. Who discovered the molecule, when, how, etc? Some compounds are part of a larger substance/plant. If this is the case, describe the isolation of your specific compound. The isolation refers to the initial time your molecule/substance was discovered from its raw materials, or isolated from its natural resources. Please see here for some hints on the chemical isolation.
- Usage and Benefit or Harm to Society
Where has your molecule/substance been used. Is it used regularly or is has it only been used on occasion? If your compound is one we ingest when eating, include information on foods it’s commonly found in.
Write about the Benefit or Harm to Society Caused by your molecule/substance. Many compounds can be used as bioweapons or have both positive and negative impacts. Other compounds have had benefits as medicines or have caused harm as illicit narcotics. All of these are good ideas to start out thinking about, so I’d like you to discuss these impacts on society, the future, and in any way you can think they may be beneficial or harmful.
Conclusions – ALL
- This section must contain:
Four to six points that sum up the main topics of the presentation that you have in your outline
Reference Slide(s) and Internal Citations – ALL
- This section must contain:
Internal citations – This is not just a separate section; rather, referencing should occur throughout the presentation via parenthetical citations anytime you paraphrase, make direct quotes, or use visual components from other sources. Please be sure to cite any language, images, videos, etc. in the presentation that should be cited.
Reference Slide – Your presentation should also have a final reference slide listing 5-10 credible sources researched for your presentation. NOTE: these are not included in the slide count for your presentation.
Do not include your summary/evaluation from Assignment 1: Annotated Bibliography; simply list the references utilized in your presentation in APA format on the reference slide.
Additional Resources:
Presentation Tips and Guidelines
APA – In-Text Citations: The Basics
APA – Reference List: Basic Rules
Sample
_Presentation (Keep in mind that this is a sample presentation for biology using a format other than PPT with audio; PowerPoint with audio is the required format for your presentation)
SCIN130 – Introduction to Biology with Lab
Annotated Bibliography
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Name:
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Course Number:
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Presentation Topic:
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Source #1
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Citation
(in APA format)
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Kaiho, T. (2014). Iodine chemistry and applications (1st ed.). John Wiley & Sons.
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Summary
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This book is vital to the project because it discusses iodine chemistry, the fundamentals of iodine, and recent advances tied to iodine. The book provides seven chapters, each discussing a vital part of iodine. The author focuses on the basics of iodine and moves to explain its use in the industrial world. The author discusses the critical characteristics of iodine linked to halogen bonding. Lastly, the book provides examples of iodine reactions and their application in the industrial biological and chemistry world.
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Evaluation
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This source is a scholarly book that discusses different characteristics and applications of iodine. The book is credible for academic work since the author’s work provides a reference list with evidence of the book’s claims. The author is a known figure in the world of industrial chemistry who backs his position with proof.
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Source #2
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Citation
(in APA format)
Metrangolo, P., & Resnati, G. (2011). Tracing iodine. Nature Chemistry, 3(3), 260-260. https://doi.org/10.1038/nchem.998
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Summary
This source is essential to the project since it discusses the history of iodine in detail. The authors discuss the importance of iodine in halogen bonding and why this is a topic of concern for chemists. The article further discusses the role iodine plays in the human body and its importance in this area. The authors end by discussing iodine’s application in industries and recent advances in the element since its discovery more than 200 years ago.
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Evaluation
This source is a peer-reviewed journal article accessed on the Nature Chemistry website. The information on this article is reliable for academic use because it provides evidence for its claims. The journal article provided a detailed reference page citing all claims used in compiling the paper. The source of this article is a trusted peer-reviewed scientific journal. Its authors are distinguished figures in the Department of Chemistry of the Italian Institute of Technology.
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Source #3
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Citation
(in APA format)
PubChem. (n.d.). Iodine. https://pubchem.ncbi.nlm.nih.gov/compound/Iodine#section=Names-and-Identifiers
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Summary
This source is essential to the project because it provides detailed information on the chemical characteristics of iodine. These include its IUPAC name, structure, molecular formula, and molecular weight. The article also provides details about the natural source of iodine and its use in day-to-day life. The source provides a detailed account of the chemical and physical properties of the element. There is a mention of the iodine’s use in food and medication.
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Evaluation
This source is an article on the PubChem website. The website is the publisher of this piece. This website’s information is reliable because PubChem is a world-known repository that provides information on chemical substances. The website is linked to the National Center for Biotechnology Information (NCBI), a government-funded database that provides biomedical information.
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American Public University System May 2018
Running head:
IODINE 2
IODINE 2
Iodine
Mary Brewer
SCIN131
Abstract
This paper discusses the origin, characteristics, applications, and harmful effects of the chemical element iodine. The substance under discussion has a wide array of chemical and physical properties that determine its reaction with other elements. The essay finds that iodine is a halogen, readily soluble in organic substances and less soluble in water. The paper finds that iodine is a naturally occurring substance that was discovered in the 19th century. Since its discovery, iodine has found numerous applications in the medical, agricultural, and food industries. Further, the essay finds that iodine’s most important use is in the human body, where it is an essential trace element that facilitates normal bodily development and function. Its greatest harm is also seen to come from this function, where its deficiency leads to deficiency disorders that require medical attention.
Iodine
I. Introduction
The world of chemistry is a valuable part of human existence since it has led to discovering some of the most important chemical elements that facilitate the continuity of human life. Iodine is an essential element in the industrial, medical, and agricultural world. Since its discovery in the 1800s, iodine has benefited man and his environment.
A. Molecule Introduction
i. IUPAC name: Molecular iodine (PubChem, n.d.).
ii. Common name: iodine (PubChem, n.d.).
iii.
Molecular formula: I2 (PubChem, n.d.).
iv. Source:
a) occurs naturally in nature and is commonly found in seawater.
b) Seaweeds are identified as the natural and most abundant iodine producers (Kaiho, 2014).
c)
It can be found in brines in Japan and oil fields in the United States (Kaiho, 2014).
d) Iodine is observed in everyday life in the form of raw crystals and processed form as table salt.
v. Iodine was chosen for this project due to its significant benefits to human life. The substance also has a very appealing color when it is sublimed.
Fig 1. Iodine Crystals
Source:
http://www.chemkits.eu/others/94-iodine-crystals-7553-56-2.html
Fig 2. Iodine Vapor
Source:
https://www.chemedx.org/article/element-month-iodine
II. Chemical and Physical Description
A. Physical Characteristics
i. Iodine is a crystalline solid with a purple-black color that exudes a sharp odor. It is nonmetallic, but its crystals show a metallic finish (Kaiho, 2014).
ii. The boiling point and melting point iodine are 184℃ and 113.7℃, respectively (PubChem, n.d.).
iii.
The density of solid iodine is 4.93g/cm3, and its vapor pressure stands at 0.3 mm Hg (PubChem, n.d.).
iv. It is slightly soluble in water, where it dissolves 0.03 g per 100 cc at 20 °C (PubChem, n.d.). The substance is readily soluble in most organic solvents since it lacks polarity (Kaiho, 2014).
B. Chemical Characteristics
i. Iodine belongs to the halogen family.
ii. Molecular iodine and its derivatives have been identified in the atmosphere over the last ten years (Saiz-Lopez et al., 2011).
iii. Iodine is an incombustible solid and holds the least volatility in the halogen family.
iv. The substance produces a toxic vapor when left at room temperature and in large amounts will reveal its purple-colored vapor.
III. The Discovery of Iodine
1. In 1811 Bernard Courtois, a French chemist, accidentally discovered a purple substance as he performed experiments with his copper vessels (Metrangolo & Resnati, 2011).
2. In 1814, the substance was proven to be a chemical element resembling chlorine based on research conducted by Joseph Louis Gay-Lussac (Kaiho, 2014).
3.
The substance got the name iodine in 1814, and by 1816, iodine had found its way into industrial production as a sterilizing agent (Kaiho, 2014).
IV. Benefits and Uses of Iodine
1. Iodine is an essential trace element in living organisms and also an essential micronutrient in the human diet.
2. It serves as a disinfectant in the pharmaceutical industry. It is used as a microbicide in crop farming and added as a nutrient for crop growth (PubChem, n.d.).
3. Its nutritive benefits are derived from consuming foods grown in iodine-rich soils and seaweeds such as wakame and mekabu, widely used in Asian countries (Ahad & Ganie, 2010).
4. It has a wide array of biomedicine uses as a disinfectant and in X-ray imaging as a radiocontrast agent (Metrangolo & Resnati, 2011).
V. Harms of Iodine
1. Its absence in the human body yields iodine deficiency disorders which lead to stillbirths, abnormal brain development, goiter, and mental retardation in adults and adolescents (Ahad & Ganie, 2010).
VI. Conclusion
A. Iodine is a chemical element under the IUPAC name molecular iodine.
B. It is a crystalline solid with a purple-black color that exudes a sharp odor.
C. Iodine occurs naturally in seaweeds, where it is extracted for industrial purposes.
D. Iodine is widely applied as a disinfectant and microbicide.
E. It is an essential trace element in human beings that provides nutritional benefits.
F. Since its discovery in 1811, iodine has provided a significant health benefit to human beings. The lack or deficiency of the substance yields bodily disorders.
G. Iodine is an element that holds importance in the medical world and the survival of human beings.
References
Ahad, F., & Ganie, S. A. (2010). Iodine, Iodine metabolism and Iodine deficiency disorders revisited. Indian Journal of Endocrinology and Metabolism, 14(1), 13-17.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3063534/
Kaiho, T. (2014). Iodine chemistry and applications (1st ed.). John Wiley & Sons.
Metrangolo, P., & Resnati, G. (2011). Tracing iodine. Nature Chemistry, 3(3), 260-260.
https://doi.org/10.1038/nchem.998
PubChem. (n.d.). Iodine.
https://pubchem.ncbi.nlm.nih.gov/compound/Iodine
Saiz-Lopez, A., Plane, J. M., Baker, A. R., Carpenter, L. J., Von Glasow, R., Gómez Martín, J. C., McFiggans, G., & Saunders, R. W. (2011). Atmospheric chemistry of iodine. Chemical Reviews, 112(3), 1773-1804.
https://doi.org/10.1021/cr200029u
