Image: YoutubeOne of the most dangerous events on our planet is volcanoes. The Volcanic eruptions...
Image: SlideshareOur planet Earth is made up of different elements as we have seen in previous le...
Volcanoes are geological structures in the form of mountains through which magma, molten rock fro...
Image: SlideshareSince the beginning of time, human beings have been looking for help in nature t...
Did you know that in ancient times and in the Middle Ages some of the energies that we know by th...
Everybody knows that the sea water is saltyWe have all gone through that horrible sensation of sw...
Everyone at some point in our lives has been surprised by a storm of lightning and thunder. It is...
The tsunamis are one of the natural phenomena most devastating in the world. A word of Japanese o...
Image: Types of Renewable and Non-Renewable Energy - bloggerEnergy sources are a series of resour...
Planet Earth provides us with a series of substances or objects that can satisfy human needs or d...
Precious metals such as gold, silver and platinum can come from meteor bombardment that took plac...
Rocks are materials composed of one or more minerals (natural substances, inorganic in nature, wi...