Convection & Ocean Currents

Analyze the image. What could explain why certain parts of the ocean have warmer temperatures?

• the uneven heating of the Earth's surface
• the rising of cold air and the sinking of warm air
• hurricanes

Analyze the image. The red arrows represent warm water rising and the blue arrows represent cold water sinking. What type of heat transfer is responsible for this movement?

• conduction
• convection
• radiation

Which of the following describes what is happening in a high pressure system?

• cold air sinking
• cold air rising
• warm air rising

Which of the following describes what is happening in a low pressure system?

• cold air sinking
• cold air rising
• warm air rising

When heat is transferred during convection, heat will always move from _________ to __________ temperatures.

• low to high
• high to low
• they don't move

Deep currents are controlled by

• temperature

• Nemo

• salinity

• climate

• precipitation

The lower the __________ and the higher the ___________, the denser the water is

• temperature; salt

• salt; temperature

• salt; salt

• temperature; temperature

What can you infer about the water at the surface of the ocean, compared to the water hundreds of meters below?

• Surface water tends to be saltier

• Surface water tends to be denser.

• Surface water tends to be warmer

• Surface water tends to be calmer

Ocean surface currents are influenced by all of these factors EXCEPT

• the location of land mass

• the Coriolis effect

• the names of the countries

• global winds

What makes winds and currents move in curved paths?

• Coriolis effect

• wave height

• longshore drift

• ocean trenches