| F+30+0 | Tunneling:Microwave analogy using wax prisms. | 2019-10-22 |
| B+25+10 | Rubber rope stretched across front of room. | 2019-09-04 |
| B+25+10 | Rubber rope stretched across front of room. | 2019-09-03 |
| B+25+10 | Rubber rope stretched across front of room. | 2019-09-05 |
| C+22+15 | Operating Sterling cycle engine, hot water powered. | 2019-12-12 |
| C+22+10 | Operating Sterling cycle engine, gas powered. | 2019-12-12 |
| C+10+5 | Mechanical model of a gas: Vibrating balls strike piston on OHP. | 2019-11-12 |
| C+30+5 | Magdeburg's hemispheres(cast iron) evacuated, can't be separated. | 2019-11-12 |
| E+25+15 | Laser beam through various slit and grating combinations. | 2019-09-26 |
| E+10+5 | Laser beam through sets of 1, 2, or multiple electro-formed slits. | 2019-09-10 |
| F+10+0 | Electron diffraction by aluminum and graphite on CRT. | 2019-09-24 |
| C+55+35 | Diffusion of Ammonia and HCl. | 2019-12-12 |
| E+45+25 | Commercial Polaroid filters on an OHP. | 2019-09-03 |
| E+45+25 | Commercial Polaroid filters on an OHP. | 2019-09-05 |
| E+45+25 | Commercial Polaroid filters on an OHP. | 2019-09-10 |
| C+10+0 | Carnot cycle models: Piston/cylinder, PVT surface. | 2019-11-12 |
| B+25+15 | Brass spring on white plastic sheet. | 2019-09-10 |
| C+50+5 | Black balls and white balls in a box are shaken. | 2019-12-12 |
