Where did Earth’s water come from? Water covers over 70% of the Earth, cycling from the oceans and rivers to the clouds and back again. It even makes up about 60% of our bodies. But in the rest of the solar system, liquid water is almost impossible to find. So how did our planet end up with so much of this substance? And where did it come from? Zachary Metz outlines the ancient origins of water on Earth. View full lesson: http://ed.ted.com/less

Where did Earth’s water come from? Water covers over 70% of the Earth, cycling from the oceans and rivers to the clouds and back again. It even makes up about 60% of our bodies. But in the rest of the solar system, liquid water is almost impossible to find. So how did our planet end up with so much of this substance? And where did it come from? Zachary Metz outlines the ancient origins of water on Earth. View full lesson: http://ed.ted.com/less

Happy Earth Day! Now go recycle something

Happy Earth Day! Now go recycle something

Comment des grêlons de la taille d'une balle de tennis peuvent-ils se former? - 09/06 - YouTube

Comment des grêlons de la taille d'une balle de tennis peuvent-ils se former? - 09/06 - YouTube

Global Water Facts And Saving Tips : infographic

Global Water Facts And Saving Tips

Global Water Facts And Saving Tips : infographic

Pourquoi le Soleil fabrique-t-il de l'énergie ? Retrouvez sur le site Les fondamentaux les 5 épisodes de la série « Comprendre et protéger la planète » : htt...

Pourquoi le Soleil fabrique-t-il de l'énergie ? Retrouvez sur le site Les fondamentaux les 5 épisodes de la série « Comprendre et protéger la planète » : htt...

18c34fa851f1ae858e3a81451b92f8e6.jpg 397×716 pixels

18c34fa851f1ae858e3a81451b92f8e6.jpg 397×716 pixels

C3W13-18 Periodic table with a fun twist!

C3W13-18 Periodic table with a fun twist!

12 Chemistry Facts for Teachers

12 Chemistry Facts for Teachers

Christmas, poiray, film, animation, joaillerie

Christmas, poiray, film, animation, joaillerie

We know that carbon dioxide is warming the Earth -- but how is it doing it? The quantum mechanics behind global warming:

We know that carbon dioxide is warming the Earth -- but how is it doing it? The quantum mechanics behind global warming:

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