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À quoi servent les algues?

S1 E47
·
2007

Algae are used as hidings and as food. Algae also produce the air that we breathe. They play a very important role for us.

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 : Pourquoi le ciel est-il bleu?

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 : Qu'est-ce qu'un glacier?

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

6min30s
Adibou and his friends make new discoveries about natural phenomenons.
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E4 : Qu'est-ce que la neige?

6min30s
It's snowing and Adibou is going to learn more about snow.
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E6 : Comment se forme la banquise?

6min30s
Adibou learns what elements make up packed ice.
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E7 : Qu'est-ce qu'une tornade?

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 : Pourquoi y-a-t-il des 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 : Pourquoi les sapins ont-ils des aiguilles?

6min30s
Adibou learns that pine needles protect trees from the cold of winter.
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E10 : Qu'est-ce qu'un lac?

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 : D'où vient le vent?

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 : Comment se forment les nuages?

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 : Qu'est-ce qu'une grotte?

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 : Comment nait une montagne?

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 : Pourquoi la terre tremble-t-elle?

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 : Qu'y-a-t-il à l'intérieur de la terre?

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 : Qu'est-ce qu'un volcan?

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 : Que crache un volcan?

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 : À quoi servent les cendres d'un volcan?

6min30s
Adibou learns that ashes a natural fertilizer, full of helpful minerals, or vitamins, for plants.
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E22 : Qu'est-ce qu'un 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 : D'où viennent les sources d'eau douce?

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 : Où va l'eau de pluie?

6min30s
Adibou learns that rain water goes underground into big reservoirs called water tables, which feed the rivers.
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E25 : Qu'est-ce que le 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 : Qu'est-ce qu'un mirage?

6min30s
Adibou learns that a mirage is an optical phenomenon linked to a very warm air, which brings up the image of an object.
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E27 : D'où vient le sable?

6min30s
Adibou 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 : Pourquoi fait-il chaud dans le désert?

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 : Qu'est-ce qu'une 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 : Qu'est-ce que le pétrole?

6min30s
Adibou 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 : Comment poussent les arbres?

6min30s
Adibou 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 : Comment naît un fruit?

6min30s
Adibou 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 : Comment poussent les champignons?

6min30s
Adibou 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 : Qu'est-ce que le tonnerre?

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 : Pourquoi certains animaux marins sont-ils lumineux?

6min30s
Adibou learns that marine animals create their own light to scare predators and some fish use light to camouflage.
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E37 : A quoi sert le corail?

6min30s
Adibou understands that coral reefs serve as home to many marine species: hidings against predators and nurseries for fish eggs.
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E38 : Qu'est-ce que la mousse?

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 : Qu'est-ce qu'un fruit des bois?

6min30s
Adibou learns that wild fruit is packed with vitamins that keeps us healthy.
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E40 : Qu'est-ce qu'un fossile?

6min30s
Adibou 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 : Qu'est-ce que le corail?

6min30s
Adibou 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 : Pourquoi certains animaux marins sont-il lumineux?

6min30s
Adibou experiences a nocturnal adventure under water and learns some fish use light to camouflage.
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E43 : Pourquoi les coquilages font-ils des perles?

6min30s
Adibou 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 : Comment nettoie-t-on la mer?

6min30s
In the oceans, nothing is lost. The waste is eaten by special fish that are called detritivorous.
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E45 : Qu'est-ce qu'un courant?

6min30s
Ocean currents distribute food for fish and serve to mix ocean water to balance temperature differences.
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E46 : D'où vient le sel?

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 : À quoi servent les algues?

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.
Subscription
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E48 : Qu'est-ce qu'un 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 : Qu'est-ce que le 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 : Pourquoi la mer est-elle bleue?

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 : Pourquoi les mûriers ont-ils des épines?

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 learns about the origins and benefits of chlorophyll. Chlorophyll is the substance that produces oxygen and gives plants their green color.
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)