| C+70+50 | Piston and cylinder compress/expand air measuring temp. and pressure. | 2025-01-28 |
| C+55+0 | Mechanical model of a gas: Vibrating balls on OHP. | 2025-01-23 |
| C+70+20 | Ice bomb: Iron sphere ruptured by freezing water. | 2025-01-21 |
| C+70+10 | Heated steel rod expands, raises pointer,breaks pin on cooling. | 2025-01-21 |
| C+70+55 | Fire syringe: paper is ignited in a cylinder with a piston. | 2025-01-28 |
| C+45+0 | Computer demo: Heat of fusion of tin. | 2025-01-30 |
| C+70+60 | CO2 fire extinguisher: Expanding gas freezes into snow. | 2025-01-28 |
| C+55+20 | Brownian motion: Like C+55+0, with an aluminum disk added. | 2025-01-23 |
| C+70+35 | Bimetallic strip: Brass/invar strip curves when heated. | 2025-01-21 |
| C+40+0 | Ball race: Five different balls heated and placed on paraffin sheet. | 2025-01-30 |
