Oceans

A habitat in which the fresh water of a river meets the salt water of the ocean.

• estuary

• watershed

• ocean

• divide

The movement of deep, cold, and nutrient-rich water to the surface.

• turbidity

• hydrothermal vent

• brackish

• upwelling

An opening in the ocean floor where hot gases and minerals escape from Earth's interior.

• upwelling

• brackish

• hydrothermal vent

• salinity

The total amount of dissolved salts in a water sample.

• dissolved oxygen

• salinity

• nitrates

• pH

How much acid or base a substance contains.

• dissolved oxygen

• nitrates

• salinity

• pH

Nitrogen, oxygen, and phosphorous compounds that plants need to grow.

• pH

• nitrates

• dissolved oxygen

• salinity

Phosphorous-based nutrients commonly found in fertilizers and pesticides.

• pH

• upwelling

• nitrates

• phosphates

A measure of how clear (or cloudy) water is.

• turbidity

• salinity

• estuary

• phosphates

Organisms that are used to assess how healthy a body of water is.

• nekton

• phosphate

• nitrate

• bioindicator

A measure of the average kinetic energy of the particles in an object.

• nitrate

• temperature

• phosphate

• salinity