| E+60+17 | Water fiber optic | 2019-07-02 |
| E+60+40 | Variable index of refraction: laser beam bends in water tank with sugar. | 2019-07-02 |
| F+15+0 | UV light hits charged zinc plate and discharges electroscope. | 2019-07-29 |
| F+15+0 | UV light hits charged zinc plate and discharges electroscope. | 2019-07-31 |
| E+60+5 | Total internal reflection/critical angle: Nakamura water tank. | 2019-07-02 |
| E+25+40 | Soap film interference: The soap bubble experiment on arc bench. | 2019-07-11 |
| E+25+40 | Soap film interference: The soap bubble experiment on arc bench. | 2019-07-10 |
| E+25+5 | Ripple tank with plane or spherical water waves and barriers. | 2019-07-11 |
| E+25+5 | Ripple tank with plane or spherical water waves and barriers. | 2019-07-09 |
| E+25+5 | Ripple tank with plane or spherical water waves and barriers. | 2019-07-10 |
| E+50+20 | Refraction of white light by prism using arc lamp. | 2019-07-01 |
| D+5+32 | Plexiglas model of electromagnetic wave. | 2019-06-25 |
| E+40+10 | Phantom lightbulb: Image in a plane mirror. | 2019-07-03 |
| E+25+15 | Laser beam through various slit and grating combinations. | 2019-07-11 |
| E+25+15 | Laser beam through various slit and grating combinations. | 2019-07-09 |
| E+25+15 | Laser beam through various slit and grating combinations. | 2019-07-10 |
| E+40+5 | Blackboard optics: Light sources with plane and curved mirrors. | 2019-07-03 |
| D+5+10 | 85 MHz radio transmitter, with indicating lamp on dipole antenna. | 2019-06-20 |
| D+5+10 | 85 MHz radio transmitter, with indicating lamp on dipole antenna. | 2019-06-26 |
| D+5+10 | 85 MHz radio transmitter, with indicating lamp on dipole antenna. | 2019-06-27 |
| D+5+10 | 85 MHz radio transmitter, with indicating lamp on dipole antenna. | 2019-07-01 |
