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Pourquoi les feuilles sont vertes?

S1 E52
·
2007

Adibou apprend les origines et les bienfaits de la chlorophylle. C'est la substance qui fabrique l'oxygène et qui la couleur verte aux plantes.

Levels:
Elementary Grade 1 Kindergarten Grade 3
Subjects:
Français Programme de la maternelle et du jardin d’enfants Demonstrating Literacy Behaviours Problem Solving and Innovating Science and technology Earth and Space Systems Life Systems
Skills:
Self-Directed Learning Collaboration Critical Thinking Problem Solving
Themes:
Environment and Sustainable Development STEAM
French level:
A2: Waystage Basic User (A1 - A2)
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E1 : Why Is the Sky Blue?

6min30s
Adibou wants to bring some sky blue back down to earth, but he can`t. Our friends discover the magic of molecules.
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E2 : What is a glacier?

6min30s
Adiboo goes to the mountain and heads straight to a glacier. Thanks to the ropes, our friends visit the glacier and Adibo learns what they are.
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E3 : Qu'est-ce qu'un orage?

6min30s
Adibou et ses amis font des nouvelles découvertes.
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E4 : Qu'est-ce que la neige?

6min30s
Adibou et ses amis font des nouvelles découvertes.
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E6 : How Does Pack Ice Form?

6min30s
Adibou learns what elements make up packed ice.
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E7 : What Is A Tornado?

6min30s
Adibou learns that a tornado is a funnel of wind blowing very hard, vaccuming everything in its path. It`s important to hide when it comes.
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E8 : Why are There Avalanches?

6min30s
Adibou is swallowed up by the snow: it`s an avalanche. The snowpack is fragile, and looks can be deceiving. The snow mass can break from the mountain.
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E9 : Why Do Pine Trees Have Needles?

6min30s
Adibou learns that pine needles protect trees from the cold of winter.
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E10 : What is a Lake?

6min30s
We meet on the shore of the lake. The boat is sucked towards the bottom by one of the crevasses. They`ll have to dig themselves out with the mechanical arm.
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E11 : Where Does the Wind Come From?

6min30s
Adibou makes a paper airplane, but there`s no wind. Robitoc explains how the wind is created by the hot and cold air masses.
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E12 : How Do Clouds Form?

6min30s
Adibou gets the impression he`s in cotton, but the ship is in a cloud that formed over a lake. Clouds are water vapour that cools down by moving up into the sky, swells with humidity, dust and pollen.
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E13 : What`s A Rainbow?

6min30s
Adibou learns that you can only see a rainbow when it`s rainy and sunny at the same time. It`s an optical phenomenon you can see but not touch.
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E14 : What Is Rain?

6min30s
Adibou learns that the rain dance doesn`t bring the rain. We have to save the plants. Humidity must rise in the air to form a cloud of tiny water droplets.
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E15 : What Is A Cave?

6min30s
Adibou enters a cave, an underground hollow that was dug out bit by bit by water acting on the stone. There are wonders in the cave.
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E16 : How Is A Mountain Born?

6min30s
How can a mountain grow so much? The formation of a mountain takes millions of years. Robitoc has a device to show Adibou a sped-up version of a mountain`s birth.
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E17 : Why Does the Earth Shake?

6min30s
Adibou learns that the earth shakes because it is located on plates that move and hit each other: they are called tectonic plates.
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E18 : What Is Inside the Earth?

6min30s
Adibou compares the inside of the Earth to a big fruit with a thin skin to protect it, the Earth`s crust supports continents and oceans, and, in the middle, an iron core.
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E19 : What`s a Volcano?

6min30s
Adibou learns that a volcano is a mountain with a magma reservoir far below the earth. And when the magma gets out, the volcano is erupting.
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E20 : What Does A Volcano Spew?

6min30s
Adibou learns that a volcano can erupt and spew gas, ashes and even stones called bombs, and lava that dribbles.
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E21 : What Are Volcano Ashes Good For?

6min30s
Adibou learns that ashes a natural fertilizer, full of helpful minerals, or vitamins, for plants.
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E22 : What Is A Geyser?

6min30s
Adibou learns a geyser is a natural water source heated by the earth, which is called a geothermal source.
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E23 : Where do freshwater sources come from?

6min30s
Adiboo learns that millions years ago, oceans were covered by fresh water sources but they still exist at the bottom of the sea.
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E24 : Where Does Rain Go?

6min30s
Adibou learns that rain water goes underground into big reservoirs called water tables, which feed the rivers.
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E25 : What is Pollen?

6min30s
Adibou learns that pollen comes from the male part of flowers, and that the wind and insects carry it to the female part of other flowers, thus allowing fruits to grow.
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E26 : What is a mirage?

6min30s
Adiboo learns that a mirage is an optical phenomenon linked to a verywarm air, which brings up the image of an object.
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E27 : Where does sand come from?

6min30s
Adiboo learns that rocks reduced in small pieces by the action of water and wind turn into sand and that this process takes thousands of years.
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E28 : Why is it hot in the desert?

6min30s
Adibou learns that because of the lack of rain in the desert heat sets in and makes the earth sweat. The water that is in the depths of the desert evaporates and disappears.
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E29 : What is an oasis?

6min30s
Adibou learns that an oasis is much like a garden in the desert with plants and trees growing through the water in the rock that is under the sand, the ground water.
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E30 : What is oil?

6min30s
Adiboo learns that oil is energy found beneath oceans and under the earth; it is used to start engines, manufacture of plastic, but oil reserves are being depleted.
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E31 : Pourquoi les feuilles tombent-elles en automne?

6min30s
With the cold season coming in the Fall, the trees set up their survival system for the winter, the leaves fall so they will not weaken the tree.
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E32 : How do trees grow?

6min30s
Adiboo learns the seed we plant in the ground and we water that becomes a small root, then a shrub and finally a tree.
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E33 : How does fruit grow?

6min30s
Adiboo knows that fruits grow through pollination. Flower pollen is transported from one flower to another by insects and fertilized flowers then turn into fruits.
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E34 : How do mushrooms grow?

6min30s
Adiboo knows a lot about mushrooms; they are organisms with no flowers nor leaves. They grow on the ground, with their little hats; they also grow on rotten wood.
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E35 : What is thunder?

6min30s
Thunder is the sound made by lightning in the sky. If it rumbles and if it happens long after thelightning, it means that is that the storm is far away and if it sounds like an explosion, it is about to get stormy.
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E36 : Why some marine animals light up the sea?

6min30s
Adiboo learns that marine animals create their own light to scare predators and some fish use light to camouflage.
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E37 : Why are coral reefs important?

6min30s
Adiboo understands that coral reefs serve as home to many marine species: hidings against predators and nurseries for fish eggs.
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E38 : What is moss?

6min30s
Tip learns that moss likes moisture; it has no root but hair-like absorbing structures that are called rhizoids
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E39 : What is a wild fruit?

6min30s
Adibou learns that wild fruit is packed with vitamins that keeps us healthy .
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E40 : What is a fossil?

6min30s
Adiboo learns that fish can be a fossil when it is trapped in the mud and then covered over thousands of years of sand and rock that hardened it like stone.
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E41 : What is a coral?

6min30s
Adiboo learns that coral is a colony of millions of animals that produce limestone, it also provides shelter and food to thousands of marine species.
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E42 : Why some marine animals light up the sea?

6min30s
Adibou experiences a noctunal adventure under water and learns some fish use light to camouflage
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E43 : Why oysters make pearls?

6min30s
Adiboo learns that a small crab or a grain of sand that enters the shell of an oyster causes irritation and coats itself of a pearly sheen, giving birth to a beautiful pearl.
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E44 : How do we clean the sea?

6min30s
In the oceans, nothing is lost. The waste is eaten by special fish that are called detritivorous.
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E45 : What is a current?

6min30s
Ocean currents distribute food for fish and serve to mix ocean water to balance temperature differences.
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E46 : Where does salt come from?

6min30s
When acidic rain washes the mountains and soils, salts that were in the rocks have sunk into the sea and are harvested in the salt marshes.
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E47 : What are algae?

6min30s
Algae are used as hidings and as food. Algae also produce the air that we breathe. They play a very important role for us.
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E48 : What is an iceberg?

6min30s
An iceberg is a block of ice that is detached from a glacier drifting on the water, the ice is not edible.
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E49 : What is compost?

6min30s
Compost is a natural fertilizer made ??from decaying plants that is used to grow plants . One can easily make composit in the garden.
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E50 : Why is the sea blue?

6min30s
Let's go to the sea; it is blue because of the light is filtered by the thickness of the water layer; the colors of the rainbow disappear gradually as one moves deeper, only blue light penetrates farther into seawater
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E51 : Why do blackberry bushes have thorns?

6min30s
Adibou is inside a blackberry bush's thorn. The plant protects itself with them. Others use urticating hairs.
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E52 : Pourquoi les feuilles sont vertes?

6min30s
Adibou apprend les origines et les bienfaits de la chlorophylle. C'est la substance qui fabrique l'oxygène et qui la couleur verte aux plantes.
Levels:
Elementary Grade 1 Kindergarten Grade 3
Subjects:
Français Programme de la maternelle et du jardin d’enfants Demonstrating Literacy Behaviours Problem Solving and Innovating Science and technology Earth and Space Systems Life Systems
Skills:
Self-Directed Learning Collaboration Critical Thinking Problem Solving
Themes:
Environment and Sustainable Development STEAM
French level:
A2: Waystage Basic User (A1 - A2)