Pourquoi le sang est-il si important pour le corps?

In summer 2016, the eyes of the world will be on Rio, where the next Olympic Games will be held! Every two years, alternating between summer and winter, this event brings together the world's greatest athletes.

Cinema was invented in 1895 by Louis and Auguste Lumière, two engineering brothers living in Lyon, France. They were the first to project a film in public, using a machine they had built.

If you perceive the taste of food, it's thanks to one of your five senses: taste.

Over the past few months, computers at several hospitals, town halls and companies in France have fallen victim to cyberattacks. Hackers specializing in the Internet are to blame, disabling computers remotely.

November 20 is International Children's Rights Day. This date marks the creation of a very important text, the Convention on the Rights of the Child.

UNESCO was founded in 1946. This global organization forges links between peoples through education, culture and science.

A hurricane is the result of a series of phenomena involving water, air and clouds.

UNESCO was founded in 1946. This global organization forges links between peoples through education, culture and science.

Meteorites are rocks from outer space that land on Earth. Most are debris from asteroids, rocks that orbit the Sun. But could a meteorite fall on our heads?

To make a comic strip, you first have to imagine a story in your head, from beginning to end. But is a good story enough to make a good comic?

This is an international sports competition in which the participating athletes have a disability. It takes place every two years, following on from the Olympic Games.

Energy is what enables us to produce heat, light or movement. Our society consumes an enormous amount of it: transport, industry, heating, lighting and electrical appliances.

Do you feel like soaking up some sun this summer? Good idea, because sunlight is good for your health... as long as you don't overdo it!

May 17 is the International Day Against Homophobia. It's a commitment to defend same-sex couples. But what does the word "homophobia" actually mean?

On August 28, 1963, Martin Luther King gave a speech that will live long in the memory. For Martin Luther King was a hero of non-violence who fought, in his own country, for equality between black and white people.

An anti-Semite is someone who feels hatred for people of Jewish religion or origin. This can take the form of insults, threats, damage or violent acts against Jews. But why this hatred?

Pesticides are chemical products used in agriculture or in parks and gardens.

Every second, mankind produces more than 100 tonnes of waste worldwide, equivalent to the weight of 20 elephants.

By 2030, manufacturers, consumers and policy-makers will have to find new ways of producing, selling and buying our food.

You have until the end of January to wish your loved ones a Happy New Year. How do other countries celebrate the New Year?

Sweden's Greta Thunberg is a young activist who has set herself the goal of doing everything she can to save the planet. But where does she come from?

Did you know that your voice depends to some extent on the shape of your head? Or more specifically, the hollows formed by your mouth, nose and throat.

Antibiotics are powerful drugs that help fight certain diseases. The effect of these drugs was discovered by Alexander Fleming in 1928.

Frida Kahlo is a famous Mexican painter. She lived in the 20th century, but still inspires many artists today, and her works are exhibited all over the world!

Mathematics is the science of numbers and shapes. It helps us understand how the world and all the other sciences, such as physics, chemistry and computer science, work.

On the Internet, traffickers can sell protected species as pets. This video explains what wildlife trafficking is and why it must be fought.

The Great Green Wall of Africa is a vegetation barrier project designed to halt the spread of the Sahara desert.

The oceans suffer from pollution, and also from certain fishing techniques, such as trawling. This involves dragging huge nets through the water, picking up everything, including fragile species.

What is this much-talked-about Gaza Strip? It's a Palestinian territory. On one side, it borders the Mediterranean Sea. On the other, it's surrounded by Israel and Egypt.

It's an astronomical phenomenon that occurs when the Moon hides the Sun for a few minutes.

How can you tell the difference between what's true and what's false when there's so much information out there, especially on the Internet?

Josephine Baker was a famous singer and dancer in the last century. She also fought against the Nazis during the Second World War, and for black rights.

For several months now, some countries have been experiencing high inflation. This means that the price of goods, such as fuel or food, is rising. But what triggers inflation?

There are 1.3 billion Catholics in the world. The Pope is the head of this immense community, present on every continent.

To mark World Wildlife Day on March 3, we take a look at the initiatives taken by governments to protect biodiversity.

There's a lot of talk about artificial intelligence, with companies saying they want to use it. But is A.I. progress or danger? 18 countries have signed an agreement to regulate the use of artificial intelligence.

TikTok is a popular app among young people, which was created in China in 2016. More and more people are wary of TikTok. Why is this the case?

A flood is when a large quantity of water, brought in by rain or the sea, for example, covers a whole area of land.

A pharaoh is a king of ancient Egypt, in North Africa. The first pharaoh was called Narmer. 5,000 years ago, he united the northern and southern parts of Egypt into a single country.

In recent years, major forest fires have broken out all over the world. Why are there forest fires?

The Pride March is a major celebration organized every year in June, to defend the rights of LGBT+ people. What does LGBT+ mean?

Climate migrants are people who leave their countries because of climatic conditions. COP28, held in Dubai in 2023, brought together countries taking action to reduce the impact of human activities on the climate.