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Podcasts & videos
Listen to our science segments on the Allô Maillardville podcast, watch our workshops and shows, and test five interactive experiments built around the topics of the episodes.
The lab at home
Red-cabbage pH, dry-ice fog, reaction time, sink or float, the science of air: each experiment follows the same steps as our workshops. Predict, test, then explain what happened. Listen to the episode (in French), then try it.
Profaqua experiment · Pair it with episode 36
Red-cabbage juice changes colour with acidity. Pick a liquid, predict whether it is acidic, neutral or basic, then pour!
1 Pick a liquid
2 Predict
The result will appear here.
Explain : red cabbage contains pigments called anthocyanins. They turn red or pink with an acid, purple near neutral, then blue and green with a base. With an adult : boil red-cabbage leaves and keep the juice to test your own liquids.
Profaqua experiment · Pair it with episode 39
Dry ice is frozen carbon dioxide. What happens when it warms up? Predict, then raise the temperature.
Solid. Nothing moves… for now.
Explain : at normal pressure, dry ice goes straight from solid to gas at −78.5 °C without becoming liquid: that is sublimation. The “fog” you see is water vapour from the air condensing in the cold. Safety: never touch it with bare hands and never seal it in a closed container.
Profaqua experiment · Pair it with episode 41
Click the drop as soon as it turns green. Five tries, then we work out your average. Predict first: how many milliseconds?
2 Test
Explain : your eyes see the change, your brain decides, then it sends a signal to your hand through your nerves. For most people, it all takes about a quarter of a second (200 to 300 ms).
Profaqua experiment · Pair it with episode 31
Pick an object, make your prediction and watch it drop in.
1 Pick an object
2 Predict
Explain : an object floats when it is less dense than water, meaning it has less mass for the same amount of space.
Profaqua experiment · Pair it with episode 35
Each right answer inflates the balloon. Can you make it lift off?
1. Air has mass.
2. Warm air rises.
3. The air we breathe is mostly oxygen.
4. Air can push things.
5. An “empty” bottle holds nothing.
Podcast
Profaqua brings science segments to Allô Maillardville, the francophone community podcast of Maillardville in Coquitlam: water, air, pH, dry ice, the brain and more.
Episode 41 · January 2026
Actualités, sciences, cuisine et cerveau
Episode 40 · December 2025
Spécial de Noël 2025 : nouvelles, histoires, cuisine et quiz festif
Episode 39 · November 2025
Novembre en chroniques : glace sèche, Madame Croteau, jour des défunts, musique
Episode 36 · July 2025
pH, chaleur estivale, hot-dogs gourmands et activités culturelles de l’été
Episode 35 · June 2025
Solstice d’été, gastronomie écoresponsable, science de l’air, histoire et francophonie
Episode 33 · April 2025
Transmission linguistique, science fascinante, plat gourmand, poisson d’avril et culture
Episode 31 · February 2025
Science de l’eau, jardinage, yoga, gastronomie et actualités culturelles
Episode 30 · January 2025
Nouvel An chinois, science amusante, santé et activités culturelles
Videos
Robots on a mission, a Van de Graaff generator on stage, tide pools at Botanical Beach: classrooms, shows and Mr. Profaqua’s journey across British Columbia.
École bilingue Notre-Dame de Sion
Students name the parts of a flower, review how it reproduces… then taste real nectar. Sweet!
The activity: FlowersProfaqua
A grade 6 class at École Félix-Leclerc in Saint-Constant takes on a LEGO® EV3 robotics challenge built around California’s monarch butterflies.
The activity: LEGO® MINDSTORMS® EV3 RoboticsProfaqua
Third robotics class for group 603 at École Laurier: team 6 takes its test with its EV3 robot.
The activity: LEGO® MINDSTORMS® EV3 RoboticsProfaqua
Well done, class 620 at École Félix-Leclerc in Saint-Constant: their EV3 robot takes on the track challenge.
Our robotics programsÉcole des Pionniers de Maillardville
Hair standing on end thanks to a Van de Graaff generator: Profaqua hosts the end-of-year show for elementary students in Maillardville.
Our science showsÉcole primaire de la Rocade
A full day of experiments at the École primaire de la Rocade daycare, ending with the show finale in front of every child.
Our Pro-D daysAlliance Française Vancouver
Alliance Française Vancouver presents its Profaqua-led summer camps: a week of discoveries, experiments and robotics challenges, entirely in French.
Our Vancouver summer campProfaqua
First stop on Mr. Profaqua’s journey across British Columbia: Port Hardy, at the northern tip of Vancouver Island.
Our outdoor workshopsProfaqua
The journey continues: Mr. Profaqua stops in Telegraph Cove, on the northeast coast of Vancouver Island.
Our outdoor workshopsProfaqua
Near Port Alberni in MacMillan Provincial Park: western red cedars, Douglas firs, western hemlocks and lichens hanging from the branches.
The activity: TreesProfaqua BC
In Juan de Fuca Provincial Park near Port Renfrew: tide pools and rocks transformed by heat and pressure over time.
The activity: Rocks and MineralsProfaqua
Mr. Profaqua reaches Victoria, where the Trans Canada Trail ends. What is the best view you have ever seen?
Our outdoor workshopsÉric Tremblay
A finalist for Francophone Business of the Year at the 2026 Palme Bleue, Éric Tremblay looks back on the road travelled since he arrived in British Columbia.
The Profaqua storyAll videos are in French.
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Experiments to try in class or at home, our tour dates in your region, camp registration openings and funding program deadlines.
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