ESB 2.3 Ocean Movement

Front

What is a neap tide?

Back

A neap tide is a tide that occurs when the sun and moon are at right angles to each other, resulting in lower high tides and higher low tides.

Front

What are collapsing waves called?

Back

Collapsing waves are called breakers.

Front

What are gyres?

Back

Gyres are circular current systems in the ocean that are caused when ocean currents are deflected by continents.

Front

What is the trough of a wave?

Back

The trough is the lowest part of a wave.

Front

What is upwelling?

Back

Upwelling is the process where ocean water moves slowly upward vertically, bringing nutrients from the deep ocean to the surface.

Front

What is a high tide?

Back

A high tide is the point in the tidal cycle when the water level is at its highest.

Front

What is a low tide?

Back

A low tide is the point in the tidal cycle when the water level is at its lowest.

Front

What causes tides?

Back

Tides are caused by the gravitational pull of the moon and the sun on the Earth's oceans.

Front

What are surface currents?

Back

Surface currents are ocean currents that occur at the surface of the ocean, driven primarily by wind.

Front

What are rip currents?

Back

Rip currents are strong, narrow channels of water that flow away from the shore, often formed by breaking waves.