1. Test Your Water

    Investigation

    Goal

    Data Collection and Analysis

    Review the Report Form questions to prepare students to collect the relevant data. You can print the form for field use.

    Students collect data, then use the Report Form to submit their findings and results. Then, review the Findings data so that students can compare their observations with those from other students around the globe.

    Note: you can review the Findings any time as more data is collected from other classrooms.

    Extend Learning

    Extend the experience after examining your findings and global results.

    Encourage students to:

    • Have a discussion on the leaching of heavy metals such as lead by acidic water using the case history of Ancient Rome. See this video resource.
    • Research the effect of lead in our bodies. Video resource.
    • Hypothesize reasons for the difference in pH of water from around the world. Video resource (advanced, references specific chemical compounds).
    • Test variables that might impact pH of water. For example allow students to introduce powdered sulfur, calcium carbonate, clay, sand, silt, or other substances into a water sample to test how it affects the pH.
    • Share out your project with the hashtag #CelebratewithDE

    Safety tips

    Encourage safety by having students wear goggles or safety glasses, and reinforcing the rule of not tasting the water samples.

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