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Making and Using a Hydrometer

Students build a hydrometer to measure the densities of fresh and salt water samples. They record the water temperature and density and use the temperature, density, and salinity conversion graph to locate the salinity. Finally, students identify how the salinity recordings made with a straw hydrometer compare with the salinity they measured with the commercial hydrometer.

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Resource Details

Grade
9th - 11th
Subjects
Science
1 more...
Resource Type
Lesson Plans
Instructional Strategy
Inquiry-Based Learning
Technology
Database & Spreadsheet
Included Materials
  • Project
  • Worksheet