Lesson 4.4 - Sea Breezes

It is a hot summer day and the sun is shining brightly.  You are on a beach, and you feel a cool breeze blowing.  Where is the breeze coming from?  Can it be blowing from the beach out to the water? 

Read Sea Breeze on page 94 in your textbook. Then, answer the following questions.

Question 1. What is the temperature of the air above the land in the diagram?

Question 2. What is the temperature of the air above the water in the diagram?

Question 3. Why is the diagram showing the air rising above the land?

Question 4. Why is the diagram showing the air dropping down above the water?

Question 5. Which way is the wind blowing in a sea breeze?

Question 6. When does a sea breeze blow, during the day or at night?

 

Check your answers with those that follow.

 

 

 

 

 

 

 

 

 

 

 

 

Answers to Questions:

Question 1. What is the temperature of the air above the land in the diagram?

The temperature above the land is 28°C.  You can see this temperature on the left side of the diagram just above the red A.

Question 2. What is the temperature of the air above the water in the diagram?

The temperature above the water is 18°C.  You can see this temperature on the water to the right of  the red A.

Question 3. Why is the diagram showing the air rising above the land?

The air is warmer above the land than it is above the water.  Warmer air is less dense and will rise.

Question 4. Why is the diagram showing the air dropping down above the water?

The air is cooler above the water than it is above the land.  Cooler air is more dense and will sink.

Question 5. Which way is the wind blowing in a sea breeze?

The wind is blowing from the water towards the land in a sea breeze.

Question 6. When does a sea breeze blow, during the day or at night?

A sea breeze usually blows during hot summer days.

 


Go to the next page to continue Lesson 4.