FLASHCARD: Ocean Currents & Wind
Flashcard
•
Science
•
8th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is convection?
Back
Convection is the transfer of heat through the movement of fluids (liquids and gases) caused by differences in temperature and density.
2.
FLASHCARD QUESTION
Front
What causes ocean currents?
Back
Ocean currents are caused by wind, the Earth's rotation, and differences in water temperature and salinity.
3.
FLASHCARD QUESTION
Front
What is the role of the sun in convection currents?
Back
The sun heats the Earth's surface, causing warm air and water to rise, which creates convection currents.
4.
FLASHCARD QUESTION
Front
What is the difference between conduction, convection, and radiation?
Back
Conduction is heat transfer through direct contact, convection is heat transfer through fluid movement, and radiation is heat transfer through electromagnetic waves.
5.
FLASHCARD QUESTION
Front
Why does cold air sink?
Back
Cold air is more dense than warm air, causing it to sink.
6.
FLASHCARD QUESTION
Front
What is uneven heating of the Earth?
Back
Uneven heating of the Earth refers to the variation in temperature across the planet due to factors like the angle of sunlight, land and water distribution, and atmospheric conditions.
7.
FLASHCARD QUESTION
Front
What is a convection cell?
Back
A convection cell is a circular pattern of fluid movement where warm fluid rises, cools, and then sinks.
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