WOULD THERE BE WIND IF THE EARTH S TEMPERATURE WAS THE SAME EVERYWHERE? ANSWER IN PARAGRAPH FORM AND PROVIDE EVIDENCE TO DEFEND YOUR ANSWER.

WOULD THERE BE WIND IF THE EARTH S TEMPERATURE WAS THE SAME EVERYWHERE? ANSWER IN PARAGRAPH FORM AND PROVIDE EVIDENCE TO DEFEND YOUR ANSWER.

No, there would be no wind. Wind is caused by differences in air pressure due to uneven heating of the atmosphere. Differences in air pressure are caused by different temperatures.

Characteristics of the Atmosphere Chapter 6 Lesson 1

After actively engaging in this lesson, I can Describe the composition of Earth s atmosphere. Explain why air pressure changes with altitude. Explain how air temperature changes with atmospheric composition. Describe the layers of the atmosphere.

The Composition of the Atmosphere The atmosphere is made up mostly of nitrogen gas. Oxygen makes up a little more than 20% of the atmosphere.

Atmospheric Pressure and Temperature The atmosphere is held around the Earth by gravity. Gravity pulls gas molecules in the atmosphere toward the Earth s surface, causing air pressure. As altitude increases, air pressure decreases. Air temperature decreases as altitude increases. Lower parts of the atmosphere are warmer because they contain a high percentage of gases that absorb solar energy.

Layers of the Atmosphere There are five major layers of atmosphere above the Earth that are separated by temperature. Each layer of the layers are separated by an increasing or decreasing temperature of the gases in the layer.

With your table, discuss why air pressure and temperature decrease as the altitude gets higher.

Fill in the chart in your interactive notebook.

Label the heights of each layer on the left. With your table partner, categorize the layers where the pictures belong. DO NOT GLUE YET!

The Troposphere Lies next to the Earth s surface Densest atmospheric level (because gravity pushes down on it the most) Layer where we live Layer where weather occurs

The Stratosphere Air is very thin There is almost no moisture in this layer so it s very dry inside the stratosphere Contains the ozone layer which absorbs sun UV rays and keeps the Earth safe from overheating

About 3mm thick or the thickness of 2 pennies stacked together.

The Mesosphere Coldest layer As altitude increases, temperature decreases Very windy

The Thermosphere * Contains the ionosphere where electricity makes gases light up = The Northern and Southern Lights *Very high temperature (BUT IT DOES NOT FEEL HOT). *This is because the particles are moving fast but do not touch.

This is outer space!! The Exosphere

THE LAYER WHERE WE LIVE. A. stratosphere B. thermosphere C. troposphere D. mesosphere

THE TWO MOST COMMON GASES IN THE ATMOSPHERE. A.Nitrogen and Oxygen B. Oxygen and trace gases C.Carbon Dioxide and Nitrogen D.Nitrogen and trace gases

WHAT IS THE FUNCTION OF THE OZONE LAYER? A. to allow UV rays to get to Earth B. to block UV rays from getting to Earth C. To keep oxygen in D. to allow meteors to get to Earth

THIS IS THE HOTTEST LAYER. A. Troposphere B. Thermosphere C. Exosphere D. mesosphere

THE LAYER WHERE WEATHER OCCURS A.stratosphere B.thermosphere C.troposphere D.mesosphere

WHICH PHENOMENON CAN BE SEEN ONLY IN THE IONOSPHERE? A. ozone layer B. Aurora Borealis C. Highlands D. water vapor

THIS IS THE LAYER WHERE AIRPLANES FLY. A.Troposphere B. Stratosphere C.Mesosphere D.Thermosphere

THIS IS THE LAYER WHERE METEORS, OR SHOOTING STARS, BURN UP. A. Troposphere B. Stratosphere C. Mesosphere D. Thermosphere

THE HIGHER YOU GO, THE AIR BECOMES. A. More dense B. Less dense

THE LAYERS OF THE ATMOSPHERE ARE SEPARATED ACCORDING TO THIS CHANGE. A. Altitude B. Elevation C. Temperature D. Distance from the sun

THIS IS THE COLDEST LAYER. A. troposphere B. thermosphere C. exosphere D. mesosphere

SATELLITES ORBIT THIS LAYER OF THE ATMOSPHERE. A. Stratosphere B. Exosphere C. Thermosphere D. Troposphere

WHERE YOU WILL FIND THE OZONE LAYER. A. stratosphere B. thermosphere C. exosphere D. mesosphere

THE EARTH'S ATMOSPHERE IS UP TO 10,000 KM HIGH. THE TROPOSPHERE EXTENDS FROM... A. the Earth's surface to up to 6-20 km high B. the Earth's surface to up to 690 km high C. the Earth's surface to up to 85 km high D. the Earth's surface to 10,000 km high

WHAT HAPPENS TO THE DENSITY/AIR PRESSURE OF THE AIR AS YOU INCREASE IN ALTITUDE? A. density increases B. density decreases C. density stays the same D. density disappears

Did we? Describe the composition of Earth s atmosphere. Explain why air pressure changes with altitude. Explain how air temperature changes with atmospheric composition. Describe the layers of the atmosphere.

Summarize why temperature and air pressure decrease as height increases. List the 5 layers of the atmosphere.