The Universe is a very mysterious and vast world. Today, we are going to discover its secrets.

Dark Matter and Gravity

Dark Matter is an energy that is all over the Universe. The Gravity and the Dark Matter are what from the Universe. If they didn't exist, us, the solar system, galaxies and the entire Universe would not exist. The Gravity, as we know it, is what holds us on the ground, but also what forms worlds like Earth and Mars.

Others Planets in the Solar System

Mercury, Venus, Mars, Jupiter, Saturn, Uranus and Neptune are all part with the Earth of the Solar System. Mercury is just a little planet where its to hot to live in day and to cold at night. Venus is the only planet who looks like Earth, in a way. Its the same size and the same weight, but it just doesn't have the same aspect and atmosphere : its a volcanic  planet. Mars is a dead planet who used to  have water on it so scientists suppose that Mars used to have life on it. Jupiter is a planet made out of gas whose abridge temperature is -143°C. Saturn is a gas planet just like Jupiter but it has rings around it. Its rings are formed by little asteroids and ice. Uranus has also rings and is colder than Jupiter and its core is made of rock and possibly ice. And, finally Neptune, the last of the four gas planets. Under its crust, its made of water and ice.

Article réalisé par Dylan. Un grand bravo à lui !

Ce quiz (pour les 7-15 ans) te permet de voir si tu as les bons réflexes lors de tes différentes activités sur Internet, tout en t'informant sur les règles de base du"savoir-être" sur le web et te permettent de t'aider pour protéger tes données personnelles.

Car ta vie privée doit rester privée !!! N'oublie pas qu'Internet est la plus grande place publique au monde !!!

Le lien du quiz :

http://www.passe-ton-permis-web.com/

Article réalisé par Jimmy