Dogsled Review (Currents, Climate, & Impact)

Millions of years ago, Earth's continents were in different places than they are today.  Which statement is most likely true about ocean currents millions of years ago compared with today?

• Surface currents and density currents would follow the same routes that they follow today.

• Surface currents would have different routes, but density currents would follow the same routes.

• Both surface and density currents would have different routes.

Tags

NGSS.MS-ESS2-2

Which part of the water cycle does the following statement most closely relate to?

The area surrounding Lake Superior is extremely humid on a summer day.

• precipitation

• condensation

• evaporation

• storage (or accumulation or collection)

Tags

NGSS.MS-ESS2-4

The current that moves south off the coast of California is a cold-water current.  Suppose this current flowed north and originated further south, near the equator.  What statement could be true?

• The coastal California climate would be warmer than it is today.

• The climate north of California would not be affected.

• The warmer water would cause smaller air masses to move inland away from the coast.

Tags

NGSS.MS-ESS2-2

Olivia is visiting her cousin Meg in Australia for Christmas.  She is packing some beachwear to enjoy the beach during her Christmas vacation in Australia.  Her friend Holly is puzzled as to why she's packing beachwear for a December vacation.  Choose the statements that Olivia can use to explain the reason to her friend Holly.

• At any given time, all parts of Earth experience the same season.

• Winter occurs when sunlight reaches the northern or southern hemisphere directly.

• When the southern hemisphere is tilted towards the sun, it receives more sunlight, so the southern hemisphere experiences summer.

Tags

NGSS.MS-ESS2-2

What will most likely happen if global warming continues at the current rate?

• An increase in temperatures will cause the melting of glaciers, and coastal cities will experience flooding.

• A decrease in temperatures will cause glaciers to become larger, and coastal marshes will dry up.

• An increase in temperatures will cause most areas of the world to experience milder weather.

• A decrease in temperatures will cause ocean currents to change direction, and global rainfall will decrease.

Tags

NGSS.HS-ESS3-6

NGSS.HS-ESS2-4

NGSS.HS-ESS3-5

Your friend Clarence is moving from an inland city to a coastal city that is near a cold ocean current.  Which statement would give Clarence the best advice about what to expect?

• There will be warm, sunny weather for going to the beach, all year long.

• There will be a mix of warm and cool weather, and a lot of fog.

• The weather will be just the same as where he is living now.

• The weather will be warm and muggy all year long.

As we go from summer to winter in the northern hemisphere, ___________________.

• Earth gets farther from the sun

• the angle of tilt of Earth's axis decreases

• the angle that the sun's rays strike the ground decreases (indirect rays)

• the angle that the sun's rays strike the gound increases (direct rays)

Shanti is making a model of a kind of ocean current.  She places an ice cube in a container of warm water.  Next she drops food coloring on the ice cube so she can see the way the water moves as the ice cube melts.  What kind of current is she modeling?

• a warm surface current

• a cold surface current

• a density current

• an upwelling

Why does an increase in salinity cause a density current to form?

• Saltier water flows more slowly, creating a drag on the water and forming a current.

• The saltier water floats away on the surface.  Water flows up from the bottom to replace it, forming a current.

• Saltier water is higher in density than fresh water.  This water then sinks to the bottom forming a current.

Tags

NGSS.MS-ESS2-2

The map shows the temperatures of surface water in different parts of the world.

Temperatures in region ____ heat up or cool down more quickly.

• 1

• 2

• 3