Ch 15 1 Atmosphere Andie
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The document summarizes the Earth's atmosphere. It is divided into four main layers from the surface up: the troposphere where weather occurs, the stratosphere containing the ozone layer which protects from UV rays, the mesosphere where meteorites burn up, and the thermosphere which has the ionosphere that produces the northern lights and the outer exosphere where satellites orbit. The atmosphere is a mixture of gases, mainly nitrogen and oxygen, as well as varying amounts of water vapor, carbon dioxide, ozone and other particles that affect air quality and climate conditions on Earth.
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Unit 2 Earth's Atmosphere
This document provides an overview of Earth's atmosphere including its composition, structure, and circulation patterns. It discusses key topics like the greenhouse effect, carbon cycle, climate zones, and factors that create suitable conditions for life. The atmosphere is divided into four main layers - the troposphere, stratosphere, mesosphere, and thermosphere - each with distinct temperature characteristics. Atmospheric circulation is driven by convection, wind patterns, and interactions between air masses. Climate and weather are also influenced by feedback loops within the carbon cycle and factors like albedo that can both amplify and dampen global temperature changes.
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The document describes the composition and layers of Earth's atmosphere. It explains that the atmosphere contains nitrogen, oxygen, and carbon dioxide. It also discusses the mechanisms of heat transfer in the atmosphere, including radiation, conduction, and convection. Finally, it explains the greenhouse effect, how greenhouse gases like carbon dioxide and methane trap heat in the atmosphere and warm the planet.
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Atmosphere (suresh lal shah)assignment
The document provides an overview of Earth's atmosphere including:
- Its composition of nitrogen (78%), oxygen (21%), and trace amounts of other gases.
- It describes the layers of the atmosphere from lowest to highest - troposphere, stratosphere, mesosphere, thermosphere, and exosphere.
- Key topics covered include the nitrogen cycle, how pressure decreases with altitude, measuring pressure, atmospheric chemistry, and issues like acid rain, the greenhouse effect, and ozone depletion.
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The document provides an overview of Earth's atmosphere including:
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- It describes the layers of the atmosphere from lowest to highest - troposphere, stratosphere, mesosphere, thermosphere, and exosphere.
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The composition of the Atmosphere
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Importance
Atmosphere – a thin layer of air that forms a protective covering around Earth.
It keeps Earth’s temperature in a range that can support life.
It also care for life-forms from some of the Sun’s harmful rays.
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The Atmosphere ** layer of gas that surrounds Earth more commonly known as “air”.
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Is this “air” that surrounds us considered matter? Does it weigh anything? How do you know?
Think about it and decide on an answer.
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They are things we learned about in the periodic table: Nitrogen, Oxygen, Carbon Dioxide, Hydrogen
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Are their atomic weights all the same?
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Gases are in the atmosphere.
They are things we learned about in the periodic table: Nitrogen, Oxygen, Carbon Dioxide, Hydrogen
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Are some atoms bigger than others?
Are their atomic weights all the same?
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Do you think of helium as light and floating or heavy and falling?
Do you think about Carbon Dioxide as light and floating or heavy and falling….think about the gas released from dry ice… does it go up or down?
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They are things we learned about in the periodic table: Nitrogen, Oxygen, Carbon Dioxide, Hydrogen
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Are some atoms bigger than others?
Are their atomic weights all the same?
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Do you think of helium as light and floating or heavy and falling?
Do you think about Carbon Dioxide as light and floating or heavy and falling….think about the gas released from dry ice… does it go up or down?
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The atmosphere is composed of several layers - the troposphere, stratosphere, mesosphere, and thermosphere. Each layer varies in temperature and composition as altitude increases. The troposphere contains 75% of the atmosphere's mass and is where weather occurs. The stratosphere contains the ozone layer, which absorbs ultraviolet radiation and allows life to exist on Earth. Rising levels of greenhouse gases like carbon dioxide are enhancing the natural greenhouse effect and leading to issues like global climate change.
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This document discusses the composition and structure of the atmosphere. It is composed of nitrogen, oxygen, and other gases. It has five layers: the troposphere, stratosphere, mesosphere, thermosphere, and exosphere. The document also discusses wind formation from air moving between high and low pressure areas, cloud formation through condensation, different types of precipitation, atmospheric pressure varying with altitude, and the importance of the atmosphere in regulating temperature and protecting the Earth. It concludes with discussing greenhouse effect, global warming caused by human activity, and atmospheric pressure.
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It keeps Earth’s temperature in a range that can support life.
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The Atmosphere ** layer of gas that surrounds Earth more commonly known as “air”.
Atmosphere. How do you know its there
Is this “air” that surrounds us considered matter? Does it weigh anything? How do you know?
Think about it and decide on an answer.
Talk in groups with the person who sits by you
Be ready to tell the class what you decided and why.
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Gases are in the atmosphere.
They are things we learned about in the periodic table: Nitrogen, Oxygen, Carbon Dioxide, Hydrogen
It is matter! Sound can travel through it.
Even though you can’t see them, Atoms make up gases.
Are some atoms bigger than others?
Are their atomic weights all the same?
Helium vs. Carbon Dioxide
Do you think of helium as light and floating or heavy and falling?
Do you think about Carbon Dioxide as light and floating or heavy and falling….think about the gas released from dry ice… does it go up or down?
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Gases are in the atmosphere.
They are things we learned about in the periodic table: Nitrogen, Oxygen, Carbon Dioxide, Hydrogen
It is matter! Sound can travel through it.
Even though you can’t see them, Atoms make up gases.
Are some atoms bigger than others?
Are their atomic weights all the same?
Helium vs. Carbon Dioxide
Do you think of helium as light and floating or heavy and falling?
Do you think about Carbon Dioxide as light and floating or heavy and falling….think about the gas released from dry ice… does it go up or down?
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Gases are in the atmosphere.
They are things we learned about in the periodic table: Nitrogen, Oxygen, Carbon Dioxide, Hydrogen
It is matter! Sound can travel through it.
Even though you can’t see them, Atoms make up gases.
Are some atoms bigger than others?
Are their atomic weights all the same?
Helium vs. Carbon Dioxide
Do you think of helium as light and floating or heavy and falling?
Do you think about Carbon Dioxide as light and floating or heavy and falling….think about the gas released from dry ice… does it go up or down?
Layers of the atmosphere
The atmosphere is divided into five main layers - troposphere, stratosphere, mesosphere, thermosphere, and exosphere. The troposphere is where weather occurs and contains around 80% of the atmosphere's mass. The stratosphere is above the troposphere and contains the ozone layer. Temperature decreases with increasing altitude in the troposphere but increases in the upper stratosphere due to ozone.
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The atmosphere is divided into four main layers - the troposphere, stratosphere, mesosphere and thermosphere. The troposphere contains around 75% of the atmosphere's mass and is where most weather occurs. It contains uniform mixtures of gases. The stratosphere is around 50km thick and contains 1000 times less water but 1000 times more ozone than the troposphere. Greenhouse gases like carbon dioxide and water vapor in the troposphere absorb and re-emit infrared radiation, warming the Earth's surface and allowing life to exist.
Air & Atmosphere Review
This document provides an overview of Earth's atmosphere and its layers. It begins by defining an atmosphere and noting that Earth's protects the planet from extreme temperatures and harmful solar radiation. The five main layers of Earth's atmosphere are then described in more detail, including the gases present and how temperature varies with altitude. Key functions of the atmosphere such as the greenhouse effect and atmospheric circulation driven by uneven solar heating are also summarized.
Structure and Composition of the Atmosphere
The atmosphere is composed of gases, water droplets, and particles surrounding Earth. It has four main layers - the troposphere, stratosphere, mesosphere, and thermosphere - each decreasing or increasing in temperature with altitude. The troposphere is where weather occurs, extending 8-16km high. Above is the stratosphere where temperatures increase with little weather, then the mesosphere where temperatures decrease again up to 80km. The thermosphere is the outermost layer with increasing temperatures from 80km high. The atmosphere composition consists primarily of nitrogen, oxygen, argon, and trace gases. Water vapor is the most abundant variable gas.
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The document summarizes key aspects of Earth's atmosphere including its composition, structure, and the water and wind patterns within it. It notes that nitrogen and oxygen make up most of the atmosphere and describes the nitrogen, oxygen, water, and carbon dioxide cycles. It explains the varying temperature and density of the atmosphere from Earth's surface to the exosphere. Key points include the greenhouse effect, evaporation and condensation processes, dew point, fog and cloud formation, and global wind patterns driven by differential heating.
Structure of atmosphere by Muhammad Fahad Ansari 12IEEM14
The document summarizes the composition and structure of the atmosphere. It discusses that the atmosphere is composed of 78% nitrogen, 21% oxygen and trace amounts of other gases. It also notes there are variable gases like water vapor and particulates suspended in the air. The structure of the atmosphere consists of four layers - the troposphere closest to the surface which contains most of the atmosphere, the stratosphere above it which contains the ozone layer, the mesosphere and thermosphere above that. Each layer has distinctive temperature characteristics.
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The atmosphere is composed of several layers - the troposphere, stratosphere, mesosphere, and thermosphere. Each layer varies in temperature and composition as altitude increases. The troposphere contains 75% of the atmosphere's mass and is where weather occurs. The stratosphere contains the ozone layer, which absorbs ultraviolet radiation and allows life to exist on Earth. Rising levels of greenhouse gases like carbon dioxide are enhancing the natural greenhouse effect and leading to issues like global climate change.
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The document describes the structure and composition of Earth's atmosphere. It is divided into four main layers based on temperature - the troposphere, stratosphere, mesosphere, and thermosphere. The troposphere contains around 90% of the atmosphere's mass and is where weather occurs. Above this is the stratosphere, where temperature increases with altitude due to ozone absorbing UV light. The mesosphere is the coldest region and the thermosphere contains extremely high temperatures but little heat due to solar radiation. The atmosphere also protects the surface from radiation through the ozone and ionosphere layers.
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The document discusses the structure and composition of Earth's atmosphere. It describes that the atmosphere extends up to 32,000 km from the surface and is made up of different layers - the troposphere, stratosphere, mesosphere, and thermosphere. Each layer has different temperature and atmospheric pressure characteristics. The atmosphere also contains variable components like gases, water vapor, particulates, and aerosols that can impact air quality.
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- 3. Weather describes what is currently happening to the atmosphere. What is our weather like now? Is it the same every day of the year?
- 4. Climate describes a general average of our weather. Do we have a cold climate in Georgia? Do we have a dry climate in Georgia? How would you describe our climate?
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- 8. Air pressure is measured using an instrument called a barometer. http://www.dkimages.com/ Notice that it looks like a thermometer. But is does not measure temperature. It measures pressure in inches. (see page 510 in your book) Also notice that there are words around the gauge. There must be a connection be weather and pressure! Cold air is more dense (has more pressure) than warm air. Dry air is more dense than wet air. Notice on the dial that rainy weather has a lower pressure!
- 16. Air quality is affected by pollutants. We just discussed many of these. Some are natural and some are manmade. Two common results of pollutants in our atmosphere are photochemical smog and acid rain .
- 17. Smog http://science.kennesaw.edu It is formed by sunlight causing reactions between chemicals in the air. Most of those chemicals come out of our cars and busses. Photo taken of Atlanta smog. Notice the brown haze in the sky. That is smog! In Georgia, it is usually caused by car exhaust. New York smog http://jmsoul.files.wordpress.com/ Video clip on smog
- 18. http://science.howstuffworks.com Acid Rain Acid rain is caused by water vapor combining with chemicals in the air and forming acid. The acid rain then changes the water in an area. It can kill trees and poison streams. http://www.ohiocitizen.org Video segment on acid rain
- 22. Troposphere – when a cloud reaches the top of this layer, they cannot go higher so they flatten out. Picture taken by the space shuttle.
- 27. Exosphere The exosphere is the outer part if the atmosphere. Fewer and fewer atoms are found as you get farther from the surface of the earth. Because of this, there cannot be an actual point where you are no longer in the atmosphere. Satellites orbit in the exosphere.
- 28. What do you know about these layers?