Earth Science Oceans

The process of upwelling occurs as a result of

• warm, less-dense deep water that floats to the surface.

• cool, dense surface water that sinks and pushes deep water up.

• surface waves that mix surface and deep water

• sunlight that warms deep water that rises to the surface.

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-6

Areas where cold, nutrient rich waters are brought to the surface due to winds blowing offshore are known as_________

• Aquifers

• Benthos

• Upwellings

• Hydrothermal Vents

Definition of upwelling

• Wide variety of plants and animals live in an estuary.

• The measure of how salty water is
  

• a process in which deep, cold water rises toward the surface

• The speed at which water flows

Tags

NGSS.MS-ESS2-6

A ship is mapping the structure of the ocean floor using sonar technology. Which describes the basic method used in this type of mapping?

• A radio wave is sent from the ship and reflects off the ocean floor back to a receiver on the ship.

• A sound wave is sent from the ship and reflects off the ocean floor back to a receiver on the ship.

• A radio wave is sent by the ship and is absorbed by the ocean floor.

• A sound wave is sent by the ship and is absorbed by the ocean floor.

Tags

NGSS.MS-PS4-2

True or False Salinity increases as ocean depth increases.

• True

• False

Which layer of the ocean would have the highest water pressure

As you swim deeper towards the ocean floor, ​ ​ (a)   and ​ (b)   increase.

• pressure

• salinity

• light

• temperature

As you swim deeper towards the ocean floor, ​​ ​ (a)   and ​ (b)   decrease.​

• light

• pressure

• temperature

• salinity

Deep in the ocean, the temperature is near (a)   . There is little ​ (b)   and living things are generally scarce. One area that contains a lot of life is the ​ (c)   . In this area, water sinks into ​ (d)   in the ocean floor, where it is ​ (e)   before it rises back into circulation.

• freezing

• light

• East Pacific Rise

• cracks

• heated

• Mid Atlantic Ridge

• worms

• boiling

• hope

• evaporated

Tags

NGSS.MS-ESS2-4

The average temperature of the ocean is ​ (a)   and is about ​ (b)   deep. The oceans cover ​ (c)   of the earth's surface.

• 3.9 C

• 3,800 m

• 71%

• 5.2 C

• 4,200 m

• 50%

• 2.5 C

• 5,000 m

Tags

NGSS.MS-PS3-4