Modern Sport and Chemistry: What a Chemically Aware Sports Fanatic Should Know

Giffin, Guinevere A.; Boone, Steven R.; Cole, Renée S.; McKay, Scott E.; Kopitzke, Robert W.

doi:10.1021/ed079p813

Cited by 5 publications

(5 citation statements)

References 14 publications

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“…The use of real-life substances in quantitative analysis motivates and emphasizes the role of chemistry in the daily lives of students. ,− Thus, whey protein is an ideal sample for performing quantitative analysis.…”

Section: Introductionmentioning

confidence: 99%

Whey Protein Analysis Using the Lowry Assay and 96-Well-Plate Digital Images Acquired Using Smartphones

Assink Junior,

de Jesus,

Borges

2023

J. Chem. Educ.

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Here, students determine the total protein content in whey protein samples using the Lowry assay. Quantitative analysis was carried out using absorbance measured at 750 nm (standard method) and 96-well-plate digital images obtained using smartphones (proposed method). The proposed method was carried out using two smartphones (1 and 2). Smartphone 1 had a higher resolution than smartphone 2. The statistical evaluation of the data set produced by the students was carried out using JASP (Jeffreys's Amazing Statistics Program), and it was a valuable tool to teach descriptive statistics and hypothesis tests. We chose JASP because it is free and open-source software with a graphical user interface. The protein percentage found in five whey protein samples using the standard method during three lab classes was compared using one-way and two-way ANOVA. Five whey protein samples were analyzed using the standard method and the proposed methods (smartphones 1 and 2). The results were compared using one-way repeated measure ANOVA (RMANOVA) and mixed-factor ANOVA. During the statistical analysis of the data set, students identified outlier results using boxplots and checked data normality using the Shapiro−Wilk test, histograms, and boxplots. They learned the difference between dependent and independent variables and compared variances using Levene's test (dependent variables) and Mauchly's test (independent variables). The interpretation of statistical tests was also carried out using descriptives plots, boxplots, and raincloud plots.

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Section: Introductionmentioning

confidence: 99%

Whey Protein Analysis Using the Lowry Assay and 96-Well-Plate Digital Images Acquired Using Smartphones

Assink Junior,

de Jesus,

Borges

2023

J. Chem. Educ.

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“…Classroom activities can connect seemingly separate concepts in chemistry to different disciplines, thereby capturing students’ attention and increasing their interest in chemistry. − Such activities are important in education since they can relate chemistry in the classroom to the real world. − We have developed an activity that links gas chemistry to technologies applied in conventional old (non-nuclear) submarine systems. This activity aims to introduce gas chemistry to high school students, and includes the chemical experiments listed in Table . , …”

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confidence: 99%

Exploring the Gas Chemistry of Old Submarine Technologies Using Plastic Bottles as Reaction Vessels and Models

et al. 2016

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We describe an activity that is suitable for high school students and makes use of plastic bottles. This activity allows students to familiarize themselves with gas chemistry by introducing technologies that were applied in old submarine systems. Plastic bottles, which are representative of submarines, are used as reaction vessels. Three simple experiments regarding gas chemistry are carried out in the plastic bottles: (1) a carbon dioxide absorption reaction using soda lime, which mimics an air-cleaning canister; (2) a chlorine and hydrogen evolution reaction by the electrolysis of brine, which highlights the accidental generation of gases by lead batteries on board submarines; and (3) a catalytic hydrogen peroxide decomposition that exists in submarine propulsion system. To introduce an antisonar countermeasure system outside the submarine, a fourth experiment on hydrogen generation by the reaction of calcium hydride and water is also conducted.

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“…A common complaint from students learning chemistry is its lack of relevance in the real world. One of our goals as educators is to find ways to show the importance of chemistry to our students’ daily lives − . One example of the societal significance of chemistry is the study of food contamination, such as coumarin contamination in vanilla or melamine contamination in milk products and pet food.…”

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confidence: 99%