How much water is there on Earth?

Have you ever wonder how much water is there on Earth? would yo like to know more about this topic? Do you know the concepts concernin with the topic? 

Through this presentation, you will learn more about Water. 

Here you have a simple definition about water.

http://en.wikipedia.org/wiki/Water

Read this article for more info.

http://science.howstuffworks.com/environmental/earth/geophysics/questio…

1.- Write a summary of five hundred words about the following videos :

https://www.youtube.com/watch?v=_LpgBvEPozk

https://www.youtube.com/watch?v=moSBExlLu2M

2.- Make a Glossary of ten words found on the video 

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1.- Watch the video again and then identify the main idea.

2.- Look up for key words 

3.- Write your personal opinion about the topic.

1.- The evaluation is going to be at the end of the second class.

2.- Students have the first class to develop their investigation. 

3.- Students provides the teacher a sheet with the summary and their glossary at the end of the second class.

After this investigation, you became a group of expert in the topic. You are able to use more vocabulary related to the topic.