As a phenomenon, students will engage with a working hydropower model as well as a video about the Hoover Dam to begin discussion and generate questions about variables impacting the effectiveness of hydropower dams.

Learning Goals:

1. Determine if the height of water above the hydroelectric turbine affects the voltage produced by the generator and if the diameter of the pipe feeding the hydroelectric turbine affects the voltage produced.

Handouts

• The Story of the Hoover Dam Worksheet
• Variables Worksheet

Classroom Supplies

• Micro Hydroelectric Power Generator (example1) or (example2)
• Water reservoir
• Piping

Group Supplies (4-6 per group)

• 1 2-Liter bottle
• 1 Ruler
• 1 Push pin
• 1 Wallpaper pan
• Towel or paper towels
• Permanent marker
• Water supply
• Duct tape

Important Links

• Lesson Plan
• Slides: How Variables Impact Hydroelectric Output
• Video: The Story of the Hoover Dam
• NEED’s Energy of Moving Water Student Guide
• NEED’s Energy of Moving Water Teacher’s Guide