Salinity, Temperature and Density Guided Notes

Multiple Choice

When ocean water evaporates, the salt evaporates with it

• True

• False

Labelling

Label the amount of salinity on the globe

Drag labels to their correct position on the image

Moderate salinity

High salinity

Low salinity

Categorize

Options (9)

• Known as the mixed layer

Wind and other forces stir or ‘mix’ the water

Typically ranges from 10m to 200m

Layer of water where temperature of water rapidly decreases

• Separates the warm surface layer from the deep cold

Below the thermocline

Water is cold, salty, and dense

Salinity and temperature are mostly constant

affected by density, and the amount of sunlight that penetrates the water surface

The ocean has three layers, what characteristics are in each layer

Surface layer

Thermocline

Deep ocean

Hotspot

Mark the correct area with these characteristics

Nutrient rich water

Low oxygen levels

Constant cold temperature

Reorder

Order these from least dense to most dense

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Reorder

Reorder from less dense to more dense

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Categorize

Options (9)

The distinct layer within the ocean where the temperature gradient changes rapidly with depth

Deep Sound Channel

has a significant impact on the distribution of oxygen in the water column

A layer in the ocean where the water density increases rapidly with depth

 coincides with the thermocline

 representation of the salinity differences in the water column

Categorize whether it falls under halocline, pycnocline or thermocline

Pycnocline

Thermocline

Haloocline