Dissolved Oxygen
Density of Water Vs Ice
Estuaries
Shadow Zone/Sofar Channel
Pyno/Halo/Thermo
100

What happens to the oxygen level with an increase in depth?

It decreases 
100

What is the density of pure water?

1.00 g/cm3

100

What is the name for where salt and fresh water meet? 

Estuary

100

Which does sound travel faster in the Sofar Channel or the Shadow Zone?

Sofar Channel

100

Increase in density with increase depth

Pynocline

200

In which region do gasses dissolve better?

Polar Region

200

What is the density of ocean water?

Between 1.020 g/cm3 and 1.030 g/cm3

200

What two types of water meet to form an estuary?

Salt water and Fresh water

200

Which location has colder, more dense water, the Sofar Channel or the Shadow Zone?

Shadow Zone

200

Decrease in temperature with increase in depth

Thermocline

300

What measures the salinity and total dissolved solids using electrons?

Electrical Conductivity 

300

Which has the higher density warm or cold water?

Cold

300

Which is less dense Salt water or Fresh water?

Fresh water

300

Submarines hide from sonar in which location, the Sofar Channel or the Shadow Zone?

Shadow Zone
300

Rapid salinity increase with increase in depth

Halocline

400

What is the most abundant gas in seawater?

Nitrogen

400

What is the term used to describe why an ice cube floats on water?

Density

400

A coastal water body where rivers and streams mix with what to form an Estuary?

An ocean

400

Which would be better for Whales to communicate in, the Sofar Channel or the Shadow Zone?

Sofar Channel

400

Combination of thermocline and halocline produces

Pynocline