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Savais-tu que... La poste en Mongolie

S2 E198
·
2017

Chrsitopher explains that the Mongolians of the day had an excellent post system that allowed Factors to change horses in relay positions rather than having to wait for their horse to rest to continue their journey.

Levels:
Élémentaire 1re année 2e année 3e année 4e année 5e année
Subjects:
Français Notions fondamentales de la langue Sciences humaines et sociales Psychologie, sociologie et anthropologie
Skills:
Citoyenneté mondiale et durabilité
French level:
A2 : Intermédiaire ou de survie B1 : Seuil
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E151 : Savais-tu que...Les jumeaux identiques

30 s
Christopher explains that identical twins are called monozygotes because they are two sperm that fertilized the same egg that subsequently split.
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E152 : Savais-tu que...Nos intestins défient la gravité

30 s
Christopher explains that even if you eat your head down and your feet up, the muscles of the esophagus and intestines will still be able to digest the food.
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E153 : Savais-tu que...La sueur, régulateur de température

30 s
Christopher explains that the pores of the skin enlarge when the human body is warm in order to let the perspiration out and thus lower the body temperature.
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E154 : Savais-tu que...La mélanine : déterminant de la couleur de peau

30 s
Christopher explains that the amount of melanin production in our body determines the color of the skin.
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E155 : Savais-tu que...La digestion commence dans la bouche

30 s
Christopher explains the process of digestion and how it begins in the mouth with teeth that cut food into small pieces.
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E156 : Savais-tu que...La poussière est faite de peau morte

30 s
Christopher explains that dust is made up of many things including dead skin cells.
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E157 : Savais-tu que...Le gros intestin n'est pas grand

30 s
Lexie explains that, despite its name, the large intestine is shorter than the small intestine and is about 1.5m long.
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E158 : Savais-tu que...La peau : l'organe le plus grand

30 s
Lexie explains that the skin is the largest and heaviest organ of the human body.
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E159 : Savais-tu que...Le rôle des reins

30 s
Lexie explains that the kidneys are very important organs in the body because they eliminate the waste that travels in the blood.
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E160 : Savais-tu que...On peut vivre avec un seul rein

30 s
Lexie explains that the human body works very well with just one healthy kidney.
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E161 : Savais-tu que...La langue a un superpouvoir

30 s
Lexie explains that one third of the tongue is not visible and helps to get food down the throat.
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E162 : Savais-tu que...Des millions de bactéries sur notre peau

30 s
Lexie explains that the skin is covered with millions of bacteria that help protect against diseases.
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E163 : Savais-tu que...Les os grandissent et s'arrêtent

30 s
Lexie explains that bones grow and become stronger until the age of 16 for girls and 20 for boys.
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E164 : Savais-tu que...Le rôle du squelette

30 s
Lexie explains that the skeleton serves as a base for the muscles and allows the body to be strong and protects organs such as the heart.
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E165 : Savais-tu que...Le plus petit os

30 s
Lexie explains that the smallest bone of the human body is in the ear and is called the stirrup.
    Levels:
    Élémentaire 1re année 2e année 3e année 4e année 5e année
    Subjects:
    Français Notions fondamentales de la langue Sciences humaines et sociales Psychologie, sociologie et anthropologie
    Skills:
    Citoyenneté mondiale et durabilité
    French level:
    A2 : Intermédiaire ou de survie B1 : Seuil