Lesson 4.3 - Convection Currents and Weather

You have learned how convection transfers heat in gases.  How is this related to weather?  Weather is related to the movement of air in the atmosphere.  Do you notice the wind blowing outside?  You will learn about two simple wind patterns to see how and why they blow in particular directions.  

Read Convection Currents and Weather on page 93 and Sea and Land Breezes on page 94 in your textbook.

Question 1. What is the name for the movement that occurs when warm air rises and cool air sinks?

Question 2. What causes all winds?

Question 3. What are land and sea breezes?

Question 4. Fill in the blanks with the correct word.  Land heats --- and cools ---.  Water heats --- and cools ---.

 

Check your answers with those that follow.

 

 

 

 

 

 

 

 

 

 

 

 

Answers to Questions:

Question 1. What is the name for the movement that occurs when warm air rises and cool air sinks?

Convection is the name for the movement that occurs when warm air rises and cool air sinks.

Question 2. What causes all winds?

Convection currents cause all winds. 

Question 3. What are land and sea breezes?

Land and sea breezes are convection currents of air that occur near a shoreline.

Question 4. Fill in the blanks with the correct word.  Land heats --- and cools ---.  Water heats --- and cools ---.

Land heats quickly and cools quickly.

Water heats slowly and cools slowly. 


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