# 8.10A- Convection & The Wind

## Do Now

Happy Wednesday! Your task is to silently and independently complete the Review Questions.

Hint: The horizontal paper with questions about balancing equations. Use your NOTES and the BOOK.

IF YOU FINISH EARLY, work on a station that you need to complete, but do NOT talk.

## "What are we doing today, Ms. CJ?"

• Do Now- Check!
• Hypothesis Foldable
• "Why Does Air Move?" Mini Lab
• Notes on Convection and the Wind
• Sea Breeze vs Land Breeze
• Practice
• Clean Up and Closing

## Announcements!

• Word Triangles are due on FRIDAY! NO EXCUSES!!!!
• Please buy LIQUID GLUE, and THANK YOU to those of you who have already done so! :-)
• We will be changing up the stations for tomorrow-Friday, so if you did not complete at least TEN, I suggest you come visit me during lunch / after-school.

### C-206

Need to practice the objectives you didn't do so well on with the test? Need to finish up some stations? Come to tutorials after school TODAY!

## Set Up your Notes Cornell Notes style!

INB Page 193

Topic: 8.10A- Convection & Air Currents

Essential Question: How does uneven heating of Earth's surface result in air movement? How does the Sun's energy affect AIR on Earth?

Main Ideas (left side) Remember, you may also highlight in your book to assist you.

• Unequal Heating of Earth's Surface
• Wind
• Global Wind Belts & Prevailing Winds
• Coriolis Effect
• Jet Streams
• Local Winds

Leave space for the SUMMARY at the bottom.

## Unequal Heating of Earth's Surface

• The Sun's energy warms Earth, but due to Earth's tilt, all areas do not receive the same amount of sunlight.
• Areas by the equator receive direct sunlight nearly year-round
• Tropics get more sunlight; areas by the poles get less
• Differences in density cause warm air to rise and cooler air to sink (aka convection)

## Wind

• The movement of air from areas of high pressure to low pressure
• Wind is basically convection of the air because there is movement.

## Global Wind Belts & Prevailing Winds

• Global wind belts influence climate and weather on Earth
• There are 3 types of prevailing winds
1. Polar Easterlies
2. Westerlies

## Coriolis Effect

• Earth's rotation causes moving air and water to appear to be moving to the: right (Northern Hemisphere) OR the left (Southern Hemisphere)

## Jet Stream

• Near the top of the troposphere (1st layer in atmosphere) is a narrwo band of high winds
• incluence weather as they move cold air from the poles toward the tropics and warm air from the tropics towards the poles

## Local Winds

There are two main types

1. Sea Breeze
2. Land Breeze

Sea Breeze & Land Breeze
5 minute science Land and sea Breezes

## Practice

We will be working on the foldables we have remaining:

• Air Mass
• Sea Breeze vs Land Breeze

## Exit Ticket, Clean Up, & Closing

On a POST-IT, answer the following questions. Do not forget your NAME.

1. What is the difference between a sea and land breeze?
2. Describe the Coriolis effect.

3. How does convection affect our atmosphere?

Your HOMEWORK is textbook pages 91-93, and 421.

Please make sure to have it stapled, prior to turning it in.