Review 6.ESS2.1

Front

What are surface currents?

Back

Surface currents are large-scale movements of water that occur at the ocean's surface, primarily driven by wind and the Earth's rotation.

Front

What is the main energy source for ocean currents?

Back

The main energy source for ocean currents is radiation from the sun.

Front

What is Continental Deflection?

Back

Continental Deflection is the change in direction of ocean currents as they encounter continents.

Front

How do surface currents and deep water currents interact?

Back

As surface currents move towards the equator, they cool and sink, becoming deep water (density) currents.

Front

What factors affect the density of seawater?

Back

The density of seawater is affected by temperature, salinity, and pressure.

Front

What happens to warm water in the ocean?

Back

Warm water is less dense and tends to stay at the surface, while cooler, denser water sinks.

Front

What is the role of salinity in ocean currents?

Back

Salinity affects the density of seawater; higher salinity increases density, causing water to sink.

Front

What is the relationship between temperature and density in seawater?

Back

As temperature decreases, the density of seawater increases, causing colder water to sink.

Front

What is the effect of evaporation on ocean water?

Back

Evaporation leaves salt behind, increasing the salinity and density of the remaining water.

Front

What is a density current?

Back

A density current is a flow of water that moves due to differences in density, often caused by variations in temperature and salinity.