Subject: What is water pressure and how does it change at different depths?

I have this question I need answered by Saturday November 17, 2007 for my 
science fair project research paper. Please take the time to answer my 
question. I have read about water pressure in the internet. I also looked in 
the archives but I found nothing. I learned that as you venture deeper into 
the ocean, the water pressure increases. I would like to know some more 
information about water pressure and how it changes at different depths. I 
would also like to know if it is important to people. If it is important, how 
does it affect people? Once again I need this information by Saturday, 
November 17, 2007. Please take the time to answer my question.
Thank you very much!

Re: What is water pressure and how does it change at different depths?