What is the chemical and physical properties of the Caribbean Sea?

Answer 1

The average depth is 4400 m (~14,400 ft). It is divided into five primary basins, the Grenada Basin, the Venezuela Basin, the Columbia Basin, the Cayman Trench, and the Yucatan Basin.

The major current that moves water into the Caribbean is the Guyana Current, which comes from the tropical Atlantic Ocean. Surface temperatures average approximately 28 degrees C. and 36 ppt salinity, while below 200 m the temperature averages about 22 C and salinity increases to 36.7 ppt, in the parts that are affected by the Gulf Stream. Western North Atlantic Central Water dominates below 200 m. Below that at 700 m the water column is dominated by Anarctic Intermediate Water that originates in Antarctica. The deepest waters below 1000 m are similar to mid-depth Atlantic water that overflows the sills in the deeper passages of Anegada and the Windwards.

I've attempted to paraphrase and shorten the details from my source, but if you want more detail, especially salinity and temperature details go here and scroll down to the Caribbean Sea entry:
http://stommel.tamu.edu/~baum/paleo/ocean/node5.html


NASA's Earth Observatory has additional oceanographic data for the Caribbean. They have global data for sea surface temperature, etc. One that is interesting is the study of dust that settles in Caribbean that is transported from Africa (most of the soil on the island of Barbados formed from this dust):
http://earthobservatory.nasa.gov/Study/Dust/

NOAA has live data from buoys in the Caribbean:
http://www.ndbc.noaa.gov/maps/Caribbean.shtml
NOAA also lists other kinds of data here:
http://www.nodc.noaa.gov/General/parameters.html

Answer 2

physical: wet, fluid, blueish greenish
chemical: H2O and salt...

Answer 3

20% water, 20% oil, 10%rum, 50% cocaine.

Answer 4

Salty and wet.