AP Chemistry Lab 12 Designing a Hand Warmer Thermochemistry Glass Dishes & Jars_Glass Troughs Large Magdeburg hemispheres demonstrating the

Large Magdeburg hemispheres demonstrating the force of atmospheric pressure through vacuum-sealed halves that resist tug-of-war separation in classroom-scale physics demos

28 inch outer diameter for glassblowing

Cross wires set inside a 10mm aperture on a 75mm circular black metal screen

accepting vertical rods up to 5/8 inch to secure funnels and flasks above heat sources

materials to prepare

AP Chemistry Lab 12 Designing a Hand Warmer Thermochemistry Glass Dishes & Jars_Glass Troughs Large Magdeburg hemispheres demonstrating theAP Chemistry Lab 12 challenges students to design hand warmers through exothermic reaction selection, thermochemistry principles, and engineering thinking.