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Arc-en-ciel

S1 E69
·
2018

In this video, the question is whether it is possible to catch a rainbow. The children learn that the rainbow is the result of the white light of the Sun passing through the water. Thus, for a rainbow to be visible, the Sun must be low in the sky and the observer's back to the Sun and facing the rain curtain. The water decomposes the white light and the colors that make it up are therefore visible. When we move towards a rainbow, it moves at the same time. It is not possible to catch a rainbow because it is light. It is possible to create a rainbow with a garden hose by having the Sun behind you and creating a curtain of rain in front of you.

Levels:
Élémentaire 4e année Secondaire 10e année
Subjects:
Sciences et technologie Matière et énergie Physique
Skills:
Apprentissage autonome Créativité Pensée critique
French level:
A2 : Intermédiaire ou de survie B1 : Seuil
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E82 : Le sommeil, que se passerait-il si je ne dormais plus?

4 min 14 s
We spend about a third of our lives sleeping. The brain and body remain active during sleep. A child needs 10 to 12 hours of sleep per night, an adult 8 hours and an elderly person 6 hours. There are several phases of sleep and in each phase, the brain has a different activity. During sleep, the body rebuilds itself, eliminates waste…
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E83 : Le système solaire

7 min 48 s
The purpose of this video is to present the Solar System and its 8 planets (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune). The concepts of rocky (or telluric) and gaseous planets are introduced. Students discover a mnemonic to remember all the planets. They also become familiar with each planet by knowing some of its…
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E84 : Les 5 sens

5 min 50 s
This video aims to differentiate the 5 senses and their associated organs. Sight, hearing, smell, touch and taste are illustrated to be memorized more easily. The senses allow us to have sensations. The organs send information to the brain so that it knows if something is hot, smells good, is soft, is colored, etc. There are also…
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E85 : Les dangers de l'électricité

6 min 16 s
But where does electricity come from? It is from this question that I quickly approach the origins of electricity, to arrive on its dangers. I list all the situations in everyday life where electricity can represent a danger: bare plugs, touching the plugs with an electrically conductive object, the proximity of water and electricity,…
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E86 : Les différents états de l'eau

11 min 7 s
This video is dedicated to the different states of water (liquid, solid, gas). Using examples from everyday life, the children observe and distinguish the different states. Several experiments are proposed to go from one state to another. For the upper grades, I proposed to go into the details of matter (atom, molecule) and to…
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E87 : Les différents types de paysages

4 min 38 s
Students can discover several types of landscapes (mountain, countryside, city, coastline, desert). They also learn about the different characteristics of each landscape.
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E88 : Les énergies

6 min 12 s
This video on energy will allow you to discover a concept or to revise a lesson already studied in class. I advise you to watch it several times with a few days between your viewings so that your brain memorizes the new vocabulary (renewable, non-renewable, energy source, primary source, secondary source) for a long time. The…
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E89 : Les mouvements corporels et le squelette, les os, les articulation

5 min 10 s
The purpose of this video is to get to know your body better by mastering the roles of the skeleton, bones, joints and muscles.
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E90 : Les mouvements de la Terre sur elle-même et autour du Soleil

5 min 14 s
This video will help you understand how the Earth revolves around the Sun and on itself. It also explains why it is day and night and why there are seasons. Don't hesitate to play the game I suggest below to see if you have understood everything. You can also do the experiments, there is nothing better than seeing all this in…
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E91 : Les positions (devant, derrière, etc.)

6 min 12 s
This video addresses the vocabulary of positions (on, under, above, below, beside, near, far, outside, inside, behind, in front, between). The aim is to understand the lexicon and reuse it to describe a position.
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E92 : Les régimes alimentaires

3 min 52 s
This video introduces the concept of diet. Students can discover what a diet is and the three main families of diets: carnivore, herbivore, omnivore. Diet is what an animal eats. Carnivores eat mainly meat. Vegetarians or herbivores eat plants and omnivores eat both. Subcategories also exist within each family, including granivores…
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E93 : Les représentations de la Terre

4 min 6 s
This video is about identifying global representations of the Earth. Students learn what a satellite image is and how it is taken. They also discover what a globe is and what it is used for. They locate the equator, the northern hemisphere and the southern hemisphere. Planispheres are also visualization tools that allow them to locate…
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E94 : Les saisons

5 min 22 s
This video presents the characteristics of each season. It evokes in particular the evolutions of the fauna and the flora for each season accompanied by photos and videos. I also remind that the date of the beginning of the seasons is not fixed since it depends on the equinox and the solstice.
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E95 : Pays, continents, océans

6 min 23 s
In this video, students can discover the definition of a country (territory delimited by borders), a continent (expanse of land surrounded by water) and an ocean (large expanse of salt water). Depending on the country, the continents are divided in different ways (from 5 to 7 continents). I chose to name 6 of them: Africa, Asia,…
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E96 : Plan de classe

5 min 8 s
This video discusses spatial location through the classroom map. First, I define the plan by specifying that it is the drawing of a place from a top view. I then suggest small exercises to get the students used to this concept. The children notice that the objects are quite different when seen from above and a table is then…
    Levels:
    Élémentaire 4e année Secondaire 10e année
    Subjects:
    Sciences et technologie Matière et énergie Physique
    Skills:
    Apprentissage autonome Créativité Pensée critique
    French level:
    A2 : Intermédiaire ou de survie B1 : Seuil