| A+12+5 | Weighted wood block dragged horizontally by force sensor. | 2019-07-02 |
| A+14+0 | Weight on a vertical spring with markers on stand. | 2019-07-08 |
| A+50+5 | Water projector: Adjustable angle water jet in front of grid. | 2019-06-27 |
| C+25+40 | Water in vertical standpipe with holes at different heights. | 2019-08-12 |
| C+25+20 | Venturi meter: Manometer tubes on tapered wind tunnel tube. | 2019-08-12 |
| C+30+68 | Vacuum Cannon | 2019-08-08 |
| C+25+30 | Two roof models, hinged, placed in wind stream. | 2019-08-12 |
| A+25+0 | Two disks, one weighted in center and other on rim, roll down ramp. | 2019-07-22 |
| A+25+0 | Two disks, one weighted in center and other on rim, roll down ramp. | 2019-07-17 |
| B+45+32 | Twirling Tube | 2019-08-06 |
| B+45+32 | Twirling Tube | 2019-08-07 |
| B+25+0 | Transverse wave model, hand-cranked. | 2019-07-31 |
| A+35+40 | Train on circular track moves one way and track moves the other. | 2019-07-24 |
| B+25+30 | Torsional wave device, large or small. | 2019-07-31 |
| B+25+30 | Torsional wave device, large or small. | 2019-08-01 |
| B+10+2 | Torsion pendulum with removable weights. | 2019-07-30 |
| A+0+5 | Timed free fall: Ball drops 2 meters through electronic timing gate. | 2019-06-25 |
| A+35+20 | Three meter airtrack with gliders that rebound elastically, or stick. | 2019-07-15 |
| A+20+5 | Tablecloth yanked out from under dishes. | 2019-07-01 |
| A+60+55 | Stacking Blocks Extend Over Base | 2019-07-23 |
| A+30+60 | Spinning Bicycle Wheel Stays Upright. | 2019-07-24 |
| B+60+0 | Speed of sound in air: Speaker resonates air column over water. | 2019-08-07 |
| B+50+50 | Sonometer: Resonant chamber with bowed strings (2). | 2019-08-01 |
| B+65+0 | Sonalert swung on the end of a string. | 2019-08-07 |
| B+50+15 | Ruben's tube: Standing sound waves in flames along a large pipe. | 2019-08-07 |
| A+25+15 | Rotational Inertia Wands | 2019-07-17 |
| A+60+37 | Rotation about the center of mass: Object to throw. | 2019-07-10 |
| A+60+37 | Rotation about the center of mass: Object to throw. | 2019-07-11 |
| A+0+57 | Rotating loop of chain rolls across bench. | 2019-07-03 |
| A+30+15 | Rotating chair with dumbbells or weighted bicycle wheel. | 2019-07-24 |
| B+50+10 | Rope and strobe: Transverse standing waves, motor driven. | 2019-08-01 |
| A+55+5 | Rolling spool: String on spool is pulled at various angles. | 2019-07-22 |
| A+50+20 | Rocket is filled with water and compressed air and launched vertically. | 2019-07-02 |
| C+30+0 | Revolving 'drumhead' with manometer shows pressure in water tank. | 2019-08-08 |
| A+35+25 | Plastic pucks on air table. | 2019-07-15 |
| B+10+10 | Physical pendulum: Steel bar with two pivot points. | 2019-07-30 |
| B+20+15 | One tuning fork with tuned cavity, drives another. | 2019-07-30 |
| B+20+15 | One tuning fork with tuned cavity, drives another. | 2019-07-31 |
| A+50+10 | Monkey and the hunter. | 2019-06-27 |
| A+50+10 | Monkey and the hunter. | 2019-07-01 |
| A+25+5 | Moment of inertia: Hoop or disk rotated by falling weight. | 2019-07-17 |
| B+50+5 | Model of longitudinal standing wave, hand-cranked. | 2019-08-06 |
| A+60+0 | Meterstick suspended in mid-air by horizontal strings and weights. | 2019-07-22 |
| B+10+0 | Mass on a spring. | 2019-07-29 |
| C+30+5 | Magdeburg's hemispheres(cast iron) evacuated, can't be separated. | 2019-08-08 |
| A+0+45 | Loop the loop: Sphere, hoop, disk rolled down a looped track. | 2019-07-17 |
| A+25+10 | Loop the loop: Sphere, hoop, disk rolled down a looped track. | 2019-07-22 |
| A+0+45 | Loop the loop: Sphere, hoop, disk rolled down a looped track. | 2019-07-08 |
| A+0+45 | Loop the loop: Sphere, hoop, disk rolled down a looped track. | 2019-07-03 |
| B+25+5 | Longitudinal wave model, hand-cranked. | 2019-08-06 |
| B+35+0 | Large wood model of a double slit with hinged waves. | 2019-08-06 |
| B+10+20 | Large damped oscillator (mass on spring) with various damping disks. | 2019-07-30 |
| A+30+25 | Large conical aluminum top. | 2019-07-25 |
| C+30+10 | Hydraulic jack with pressure gauge, breaks 2"x 2" piece of wood. | 2019-08-08 |
| B+45+42 | Hoot Tube | 2019-08-06 |
| A+30+30 | Gyroscopes; various. | 2019-07-25 |
| C+25+0 | Flettner rotorcar blown with fan. | 2019-08-12 |
| B+20+20 | Film : "Tacoma Narrows bridge collapse",silent, 4 min. | 2019-08-01 |
| A+35+10 | Elastic collisions: Five hanging balls and two unequal hanging balls. | 2019-07-15 |
| A+50+0 | Dropped and shot balls hit bench simultaneously. | 2019-06-27 |
| B+20+0 | Driven harmonic oscillator: Motor driven mass on spring. | 2019-07-30 |
| A+60+25 | Disk (weighted off-center) rolls up inclined plane. | 2019-07-22 |
| C+25+16 | Compressed air through funnel sucks in ball. | 2019-08-12 |
| B+45+30 | Compressed air jet blows through spinning disk with holes. | 2019-08-06 |
| C+30+65 | Collapse 1 gallon metal can with vacuum pump. | 2019-08-08 |
| A+0+59 | Chain lariat with hand drill or electric rotator. | 2019-07-03 |
| A+60+32 | Center of gravity (toy) objects. | 2019-07-23 |
| C+30+35 | Cartesian divers: Pressure on cap sends divers sinking. | 2019-08-08 |
| A+20+0 | Card snapped from under a weight by a leaf spring. | 2019-07-01 |
| A+50+25 | Carbon dioxide propelled rocket flies across room on wire. | 2019-07-02 |
| A+0+50 | Candles rotating about an axis. | 2019-07-03 |
| A+20+10 | Breaking thread above and below weight. | 2019-07-01 |
| B+25+15 | Brass spring on white plastic sheet. | 2019-07-31 |
| B+25+15 | Brass spring on white plastic sheet. | 2019-08-01 |
| A+5+20 | Bowling ball pendulum swings back to nose. | 2019-07-09 |
| C+25+5 | Bernoulli's principle: Ball suspended in air stream. | 2019-08-12 |
| B+45+15 | Bell ringing in a jar evacuated with pump. | 2019-08-01 |
| B+35+20 | Beats with tuning forks on tuned cavities. | 2019-08-07 |
| A+35+0 | Balls of equal and unequal mass on strings, separated by a leaf spring. | 2019-07-11 |
| A+50+35 | Ballistics car: Ball ejected from rolling car drops back in. | 2019-06-27 |
| B+10+50 | Ball on turntable rotates beneath synchronized pendulum . | 2019-07-30 |
| C+30+17 | Archimedes' principle: weighing beakers in water. | 2019-08-08 |
| C+30+15 | Archimedes' principle: Cup and plug on balance beam. | 2019-08-08 |
| A+35+35 | Airtrack: Long track with two gliders coupled by a spring hoop. | 2019-07-11 |
| B+35+5 | Acoustic interference with Quincke (trombone) tube and sonalert. | 2019-08-06 |
| A+0+20 | Acceleration of a steel ball down an inclined plane with metronome. | 2019-06-25 |
| A+0+35 | A ball swung on a string held by a sleeve. | 2019-07-03 |
| A+0+0 | "Coin and Feather" fall in an evacuated rotatable tube. | 2019-06-25 |
