Middle school students explore how fertilizers and other solids affect water quality by building and using sensors to measure the electrical conductivity of water samples. They then create data tables and investigate possible sources of pollutants using digital visualization tools.

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Filed under: Class Activities, Grades 6-8, Grades 9-12, K-12 Outreach Programs, Lesson Plans | Comments Off on Measuring Water Quality to Assess Human Impact

Tags: arduino, Class Activities, data analysis, electrical circuits, Electrical Engineering, Environmental Engineering, Excel, Grades 6-8, HackingSTEM Microsoft, hydrology, Lesson Plan, Pollution, sensors, water quality

High school students working in teams of four learn how a device made with dye from berries can be used to convert light energy into electrical energy by building their own organic solar cells and measuring performance based on power output.

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Filed under: Class Activities, Grades 9-12, Grades 9-12, Lesson Plans | Comments Off on Berry Organic Solar Energy

Tags: Alternative Energy, berry, Chemical Engineering, Class Activities, curcuits, electrical circuits, Electrical Engineering, electricity, Grades 9-12, materials, organic, Solar Energy, Sustainability