| C+30+55 | Working model of the lung: Balloons in a bell jar over a diaphragm. | 2021-11-04 |
| A+14+0 | Weight on a vertical spring with markers on stand. | 2021-09-28 |
| A+50+5 | Water projector: Adjustable angle water jet in front of grid. | 2021-09-07 |
| C+25+40 | Water in vertical standpipe with holes at different heights. | 2021-11-09 |
| C+30+68 | Vacuum Cannon | 2021-11-04 |
| A+25+0 | Two disks, one weighted in center and other on rim, roll down ramp. | 2021-10-21 |
| A+25+0 | Two disks, one weighted in center and other on rim, roll down ramp. | 2021-10-26 |
| A+35+20 | Three meter airtrack with gliders that rebound elastically, or stick. | 2021-10-07 |
| A+35+20 | Three meter airtrack with gliders that rebound elastically, or stick. | 2021-10-12 |
| C+30+70 | The weight of air. | 2021-11-09 |
| A+15+0 | The Cavendish experiment: Model and actual apparatus to show. | 2021-10-07 |
| A+60+35 | Static equilibrium for a rope on a spool. Same as A+55+5. | 2021-10-26 |
| A+30+10 | Rotational inertia device: Sliding weights on rotating rod. | 2021-10-28 |
| A+60+37 | Rotation about the center of mass: Object to throw. | 2021-10-26 |
| A+0+57 | Rotating loop of chain rolls across bench. | 2021-09-21 |
| A+30+15 | Rotating chair with dumbbells or weighted bicycle wheel. | 2021-10-28 |
| A+50+27 | Rocket using a CO2 Fire Extinguisher: Newton's 3rd Law. | 2021-10-14 |
| A+50+27 | Rocket using a CO2 Fire Extinguisher: Newton's 3rd Law. | 2021-10-21 |
| C+30+0 | Revolving 'drumhead' with manometer shows pressure in water tank. | 2021-11-04 |
| A+5+22 | Potential energy of spring imparted to ball on ramp | 2021-09-23 |
| A+5+22 | Potential energy of spring imparted to ball on ramp | 2021-09-28 |
| A+35+25 | Plastic pucks on air table. | 2021-10-14 |
| A+35+25 | Plastic pucks on air table. | 2021-10-12 |
| A+12+10 | Plank oscillates on oppositely rotating bicycle wheels. | 2021-11-18 |
| A+12+10 | Plank oscillates on oppositely rotating bicycle wheels. | 2021-09-16 |
| C+22+10 | Operating Sterling cycle engine, gas powered. | 2021-12-02 |
| A+50+10 | Monkey and the hunter. | 2021-09-07 |
| C+55+10 | Mechanical model of a gas: Vibrating balls strike piston on OHP. | 2021-11-30 |
| B+10+0 | Mass on a spring. | 2021-11-16 |
| A+25+10 | Loop the loop: Sphere, hoop, disk rolled down a looped track. | 2021-10-21 |
| A+25+10 | Loop the loop: Sphere, hoop, disk rolled down a looped track. | 2021-10-26 |
| B+10+5 | Large torsion pendulum with different diameter rods. | 2021-11-18 |
| C+30+52 | Interconnected set of glass vases of different shapes. | 2021-11-04 |
| A+35+18 | Inelastic collisions: Another ballistic pendulum. | 2021-10-12 |
| A+35+18 | Inelastic collisions: Another ballistic pendulum. | 2021-10-14 |
| C+30+10 | Hydraulic jack with pressure gauge, breaks 2"x 2" piece of wood. | 2021-11-04 |
| C+25+11 | Glass standpipes with a constriction. Similar to C+25+10. | 2021-11-09 |
| B+10+70 | Four pendulums on rod: Same mass, different lengths. | 2021-11-18 |
| A+14+5 | Force table: Forces on a car on a horizontal table. | 2021-09-14 |
| A+60+5 | Force on hinged beam measured with transducer. | 2021-11-02 |
| C+25+0 | Flettner rotorcar blown with fan. | 2021-11-09 |
| C+55+60 | Equipartition of Energy: Different mass balls bounce out at different times. | 2021-11-23 |
| C+55+60 | Equipartition of Energy: Different mass balls bounce out at different times. | 2021-11-30 |
| A+5+10 | Equal path lengths ball race. | 2021-09-23 |
| C+22+0 | Engine models: Steam, 4-cycle Otto. | 2021-12-02 |
| A+50+0 | Dropped and shot balls hit bench simultaneously. | 2021-09-02 |
| A+50+0 | Dropped and shot balls hit bench simultaneously. | 2021-09-07 |
| A+60+25 | Disk (weighted off-center) rolls up inclined plane. | 2021-10-26 |
| A+0+40 | Conical pendulum: Similar to A+0+35 with standard weights. | 2021-09-21 |
| C+25+17 | Compressed air attracts card with pin to holder. | 2021-11-09 |
| B+10+3 | Compound pendulum: Meterstick with movable brass weight. | 2021-11-18 |
| C+30+65 | Collapse 1 gallon metal can with vacuum pump. | 2021-11-04 |
| A+50+26 | Carbon dioxide propelled rotational device. | 2021-10-14 |
| A+50+26 | Carbon dioxide propelled rotational device. | 2021-10-21 |
| A+5+15 | Brachistochrone: Three balls falling along different trajectories. | 2021-09-23 |
| A+5+20 | Bowling ball pendulum swings back to nose. | 2021-09-30 |
| A+12+0 | Blocks, with various surfaces slide on an inclined plane. | 2021-09-16 |
| A+35+0 | Balls of equal and unequal mass on strings, separated by a leaf spring. | 2021-10-07 |
| A+35+0 | Balls of equal and unequal mass on strings, separated by a leaf spring. | 2021-10-12 |
| A+50+35 | Ballistics car: Ball ejected from rolling car drops back in. | 2021-09-02 |
| B+10+15 | Ball rolling in a spherical dish on OHP. | 2021-11-18 |
| C+40+0 | Ball race: Five different balls heated and placed on paraffin sheet. | 2021-11-23 |
| C+40+0 | Ball race: Five different balls heated and placed on paraffin sheet. | 2021-11-30 |
| A+5+0 | Ball on string mounts on blackboard and pivots on lower rod. | 2021-09-30 |
| A+0+10 | Atwood machine: Unbalanced weights on a pulley accelerate slowly. | 2021-09-14 |
| C+30+17 | Archimedes' principle: weighing beakers in water. | 2021-11-09 |
| A+35+35 | Airtrack: Long track with two gliders coupled by a spring hoop. | 2021-10-07 |
| A+0+0 | "Coin and Feather" fall in an evacuated rotatable tube. | 2021-08-31 |
