Rub fur on styrofoam. Place a pie plate on top. Ground it. Lift it up. ZAP. Students experience charging by induction firsthand — and they can repeat it over and over. 12 conceptual questions build a complete progression: triboelectric charging, induced polarization, grounding, and why the pie plate is positive even though no positive charges moved. What's Included: • Student activity worksheet with procedure, real setup photo, and 12 questions • Teacher notes with answer key, equipment costs, and assembly instructions • Print-ready digital resource + editable Word formats Cheap materials (~$7 per group). Designed for Grades 9-12 physics. NGSS-aligned. 20-30 minutes. Buying several labs? This activity is included in the 22 Physics Labs Bundle and the MEGA curriculum bundle. Check what you own before buying it separately.
