The Moving Ocean

__________ is the upward motion of ocean water, caused by an offshore wind.

• Breakers

• Crest

• Tide

• Upwelling

__________ is the periodic rise and fall of sea level.

• Breakers

• Crest

• Tide

• Trough

True or false: Gyres rotate in a counterclockwise direction in the northern hemisphere.

• True

• False

Tags

NGSS.MS-ESS2-6

True or false: The water in a wave moves steadily forward (i.e., it never changes speed).

• True

• False

True or false: Wave speed increases with wavelength.

• True

• False

Tags

NGSS.HS-PS4-1

True or false: Spring and neap tides alternate every four weeks.

• True

• False

Tags

NGSS.MS-ESS1-1

Which term below best describes the tide when the Sun, the Moon, and Earth form a right angle?

• High tide

• Low tide

• Neap tide

• Spring tide

Surface currents in the ocean are primarily driven by

• density differences.

• temperature differences.

• waves.

• winds.

Tags

NGSS.MS-ESS2-6

Surface currents flowing away from the equator carry

• cool water.

• downwelling water.

• upwelling water.

• warm water.

Tags

NGSS.MS-ESS2-6

The winds that are most involved in forming ocean currents worldwide are the

• prevailing westerlies and monsoons.

• trade winds and prevailing westerlies.

• trade winds and monsoons.

• West Wind Drift and trade winds.

Tags

NGSS.MS-ESS2-6