Currents in the Ocean

What provides the energy that drives ocean currents?

• The Moon

• The Sun

• The Earth's core

• Ocean tides

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-6

What are the two main types of ocean currents?

• Surface currents and tidal currents

• Deep currents and tidal currents

• Surface currents and deep currents

• Tidal currents and wind currents

Tags

NGSS.MS-ESS2-6

What are surface currents?

• Movements of water deep in the ocean

• Stream-like movements of water at or near the ocean surface

• Movements of air above the ocean

• Movements of water caused by tides

Tags

NGSS.MS-ESS2-6

What causes surface currents to move in curved paths?

• Ocean tides

• The Coriolis effect

• Water temperature

• Continental deflections

Tags

NGSS.MS-ESS2-6

What happens to ocean water when it becomes saltier or colder?

• It becomes less dense

• It becomes denser

• It evaporates

• It rises to the surface

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What causes water molecules at the surface to move closer together?

• Warm air

• Cold air

• Sunlight

• Wind

Tags

NGSS.MS-PS1-4

At what depth does the water temperature become colder as the depth increases?

• 100 meters

• 200 meters

• 300 meters

• 400 meters

Tags

NGSS.MS-ESS2-6

What is not a factor controlling deep currents?

• Wind

• Temperature

• Salinity

• Water density

What is the role of salinity in ocean water density?

• It decreases density

• It increases density

• It has no effect

• It evaporates water

What is the main characteristic of deep currents?

• They are wind-driven

• They are stream-like movements

• They are surface currents

• They are temperature-driven

Tags

NGSS.MS-ESS2-6