Convection Currents

Convection Currents

Assessment

Flashcard

Science

7th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What are convection currents?

Back

Convection currents are the movement of fluid caused by differences in temperature and density, where warmer, less dense fluid rises and cooler, denser fluid sinks.

2.

FLASHCARD QUESTION

Front

What causes thunderstorms?

Back

Thunderstorms can be caused by convection currents that develop when warm, moist air rises and cools, leading to condensation and precipitation.

3.

FLASHCARD QUESTION

Front

What happens during a land breeze?

Back

A land breeze occurs when the land cools faster than the sea at night, causing cooler air from the land to flow towards the warmer sea.

4.

FLASHCARD QUESTION

Front

Which air is denser: cold air or warm air?

Back

Cold air is denser than warm air.

5.

FLASHCARD QUESTION

Front

What is the role of temperature in convection currents?

Back

Temperature differences create density differences in fluids, which drive the movement of convection currents.

6.

FLASHCARD QUESTION

Front

How does warm air behave compared to cold air?

Back

Warm air is less dense and rises, while cold air is denser and sinks.

7.

FLASHCARD QUESTION

Front

What is an example of convection in everyday life?

Back

An example of convection is the heating of water in a pot, where warm water rises to the top and cooler water sinks.

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