The Universal Declaration of Human Rights

The Universal Declaration of Human Rights (UDHR) is a milestone document in the history of human rights. Drafted by representatives with different legal and cultural backgrounds from all regions of the world, it sets out, for the first time, fundamental human rights to be universally protected.

The Declaration was adopted by the UN General Assembly in Paris on 10 December 1948 during its 183rd plenary meeting.

                              

The planet Earth

The hidrosphere

The atmosphere

"THE WATER CYCLE" 
 Let´s go into it.

DO YOU KNOW that the water you use today has been around since the earth was formed? It's true. New water can't be made. Earth's water cycles through many uses and through different forms. It may be liquid (water), solid (ice), or water vapor in the air. It is reused over and over again.

The water you drink today ...

...is the same water dinosaurs drank millions of years ago.

Yes, I know you are thinking: How disgusting!, How revolting!

The water cycle is made up of four stages:

1.  Evaporation is when the sun heats up water in rivers, lakes, and oceans, and turns the water into vapor, and it goes into the air.
2. Condensation is when the vapor gets colder, turns back into liquid, and forms clouds.
3. Precipitation happens when the air can't hold anymore condensation. Precipitation can be rain, snow, or hail.
4. Collection is when the water falls onto the earth, and starts the cycle all over again.