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Fluorescence ou phosphorescence?

S1 E18
·
2016

Do you know the difference between fluorescence and phosphorescence? Yannick introduces us to some very surprising fluorescent objects, like the banana! In the magic theater, Daniel then uses the energy of a light bulb to produce a fluorescent effect.

Levels:
Élémentaire 4e année
Subjects:
Sciences et technologie Matière et énergie
Skills:
Communication Pensée critique
French level:
A1 : Introductif ou découverte A2 : Intermédiaire ou de survie
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E16 : L'inertie

13 min
What is inertia? Daniel explains how this scientific principle is responsible for some messes! In his lab, Yannick is trying to pull a tablecloth over a table without knocking over the objects on it. Do you think he'll succeed without causing
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E17 : Le laser

13 min
Today, Daniel and Yannick show us the true powers of lasers. Do you think it's possible to light a match or pop birthday balloons using only laser light?
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E18 : Fluorescence ou phosphorescence?

13 min
Do you know the difference between fluorescence and phosphorescence? Yannick introduces us to some very surprising fluorescent objects, like the banana!
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E19 : L'électricité statique

13 min
Daniel explains what static electricity is. Yannick then uses this electrical phenomenon to perform all sorts of surprising and amusing experiments.
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E20 : Tout en plastique!

13 min
Daniel takes us on a tour of plastics. Did you know that adding lemon juice to milk produces a plastic? In his lab, Yannick uses chemistry to make nylon thread before our very eyes.
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E21 : Les acides

13 min
What do vinegar and lemon juice have in common? They're both acids. Yannick introduces Daniel to even stronger acids than vinegar and lemon juice. You'll be amazed at what they can dissolve.
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E22 : Chaleur par la chimie

13 min
How do hand warmers generate heat? Chemistry! In his lab, Yannick shows Daniel some surprising ways of producing heat
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E23 : Le son

13 min
Keep your ears wide open, because we're interested in sound. With Daniel, you'll discover how a sound tube works. In his lab, Yannick produces sounds in surprising ways.
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E24 : Action / Réaction

13 min
Do you know the action-reaction principle? It makes it possible to propel different objects at high speed. In his lab, Yannick uses the action-reaction principle to achieve a spectacular take-off.
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E25 : Les miroirs

13 min
Did you know that mirrors often play tricks on us? To prove it, Yannick presents Daniel with three amusing mirror challenges.
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E26 : Centre de gravité

13 min
In this episode, Daniel introduces the notion of equilibrium. In his lab, Yannick modifies the center of gravity of a water bottle. Daniel then performs a magic trick to shift a spectator's center of balance.
    Levels:
    Élémentaire 4e année
    Subjects:
    Sciences et technologie Matière et énergie
    Skills:
    Communication Pensée critique
    French level:
    A1 : Introductif ou découverte A2 : Intermédiaire ou de survie