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Savais-tu que... Civilisations anciennes/Corps humain
Savais-tu que... La peau, l'organe le plus grand
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S2
E158
·
2017
Lexie explains that the skin is the largest and heaviest organ of the human body.
Levels:
Elementary
Grade 3
Grade 4
Grade 5
Grade 6
Subjects:
Science and technology
Life Systems
Episodes (
15
)
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E134
: Savais-tu que... La production de salive dans toute une vie
.
30 s
.
In this short capsule, Christopher explains that during our life, the body produces enough saliva to fill two pools.
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E135
: Savais-tu que... Un éternuement... puissant!
.
30 s
.
Christopher explains that the air that is projected during a sneeze can reach a speed of 56 km/h and can land 9 metres further. It is therefore important to cover your mouth with your elbow when sneezing!
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E136
: Savais-tu que... Couleur de cheveux versus quantité
.
30 s
.
People with blond hair have more hair than others, but they are thinner, while people with red hair are the ones with the least hair.
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E137
: Savais-tu que... La langue cicatrise le plus vite
.
30 s
.
Christopher explains that the tongue is a part of the body that heals very quickly because of the multiple blood vessels that make it up.
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E138
: Savais-tu que... La pousse de l'ongle
.
30 s
.
Christopher explains that the nails of the hands grow faster than the nails of the feet, because the growth of the nails is associated with the shocks: as the hands are used more than the feet, the nails grow faster.
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E142
: Savais-tu que... Souffle blanc quand il fait froid
.
30 s
.
Christopher explains that our breath becomes white when it is cold, because it turns into small droplets of water in contact with the cold.
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E143
: Savais-tu que... Un corps... brillant!
.
30 s
.
Christopher explains that the human body emits light that is not visible to the naked eye.
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E144
: Savais-tu que... A.D.N. des bananes et du corps humain
.
30 s
.
Christopher explains that humans and bananas have 50% of their DNA that is similar.
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E145
: Savais-tu que... La puissance du cerveau
.
30 s
.
Christopher explains that the energy produced by the brain would be powerful enough to light a light bulb.
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E146
: Savais-tu que... On est plus grand le matin que le soir
.
30 s
.
We measure up to 2 centimeters taller when we wake up. Christopher introduces us to this phenomenon.
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E147
: Savais-tu que... Sourire versus bouder
.
30 s
.
Christopher explains that it is more difficult for our body to sulk than to smile, because the muscles to sulk are less often used than those to smile.
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E148
: Savais-tu que... Le cerveau a besoin d'eau
.
30 s
.
Christopher explains that the brain needs water to work well, so it's important to drink plenty of water throughout the day.
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E149
: Savais-tu que... La langue change de couleur
.
30 s
.
Christopher explains that the color of the tongue can express a person's state of health.
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E150
: Savais-tu que... Les hémisphères du cerveau
.
30 s
.
Christopher explains the role of each hemisphere of the brain.
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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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Levels:
Elementary
Grade 3
Grade 4
Grade 5
Grade 6
Subjects:
Science and technology
Life Systems
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