Ocean review

 What are surface currents?

• daily changes in the level of ocean water

• water that empties from rivers into the ocean

• the slow mixing of warm and cold water near the surface of the ocean

• streamlike movements of water that happen near the surface of the ocean

Tags

NGSS.MS-ESS2-6

How does convection cause ocean currents?

• During the process of convection, energy is transferred to the atmosphere, forming winds. These winds power surface currents.

• During the process of convection, the heating of surface water by the sun results in upwelling.

• During the process of convection, more minerals and gases dissolve in warm water. This increases the density of the warm water and causes it to sink.

• During the process of convection, energy in warm water is lost to its surroundings. The water cools, becomes denser, and sinks.

Tags

NGSS.MS-ESS2-6

Which statement describes the general pattern of winds near the equator?

• Winds are generally strong because the equator is a region of mostly high air pressure.

• Winds are generally weak because the equator is a region of mostly low air pressure.

• Winds are generally weak because the equator is a region where low and high air pressure atmospheric bands come together.

• Winds are generally strong because the equator is a region where low and high air pressure atmospheric bands come together.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

When water evaporates, residues of ______ and other minerals that will not evaporate are left behind, making water ______ .

• salt; denser

• chalk; lighter

• silt; warmer

• carbon; cooler

Tags

NGSS.MS-PS1-4

Which three factors most directly affect surface currents in the oceans?

• upwelling, convection, and the sun’s energy

• surface winds, the Coriolis Effect, and continental deflection

• dissolved solids, dissolved gases, and the sun’s energy

• deep currents, convection currents, and surface winds

Tags

NGSS.MS-ESS2-6

What is a ways that would cause the density of the water to decreases.

• When water gains heat.

• When ocean water evaporate.

• C. When water’s salinity increases. 

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of the following does not describe high pressure air?

• frequently, high pressure air is colder than low pressure air

• high pressure air particles are closer together than low pressure particles

• high pressure air is less dense than low pressure air

• high pressure air flows toward low pressure air

Which process causes wind?

• ocean currents

• differences in elevation

• condensation in the atmosphere

• the uneven heating of Earth by the sun

Tags

NGSS.MS-ESS2-6

What is a ways that would cause the density of the water to decreases.

• When water loses heat.

• When ocean water evaporate.

• When it rains over the ocean.

• C. When water’s salinity increases. 

Tags

NGSS.MS-PS1-4

Different factors influence the movement and direction of ocean currents & wind. What factor causes currents north and south of the equator to move in different directions? (2pts)

• the sun’s energy

• Continental deflection

• the density of water

• the Coriolis effect

Tags

NGSS.MS-ESS2-6