Education Technology

Beverage Tests

Published on 02/14/2011

Activity Overview

Students determine the pH of liquid samples. They get familiar with the pH scale, create graphs comparing pH levels, and compare data displayed as a scatter plot, a boxplot, a histogram, and a bar graph.

Key Steps

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    Students record the pH of several different samples of beverages or liquids. Once the data is collected, students will set up and display two different graphs, a scatter plot and box plot, comparing the different beverages and their pH values.

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    Students will analyze the graphs and use the results to determine the mean and median of the pHs. They will determine where most of the beverages cluster to see what this might reveal about most of the beverages they drink.

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    Students modify a histogram of the data into a bar graph and store the picture with labels. They discuss the advantages and disadvantages of this method.