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troposphere: closest to the earth, (7-8 miles out ) ALL weather occurs here. most of the gas in the atmosphere is in this  layer 

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troposphere: closest to the earth, (7-8 miles out ) ALL weather occurs here. most of the gas in the atmosphere is in this  layer 

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Convection: heat transferred by the movement of fluids liquids and gases
Conduction: how heat transfers through direct contact with objects that are touching
Stratosphere: (8-25 miles ) airplanes like to fly here and it also contains the ozone layer (030. The ozone layer protects the earth from UV rays
MESOSPHERE: (25-40 miles out ) This layer protects earths surface from being hit by most meteoroids which burn up from friction with the atmosphere

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1. 6-47 miles/ 10- 70 km in thickness
2, less dense than oceanic crust
3,high abundance of  igneous rock
Oceanic Crust
1.4 miles// 7km in thickness
2. lays under the ocean
3, compose dense rocks
Mantle
1.1800 miles / 2900 km thick
2.composed of silicates minerals
3. has iron
Lithosphere
1.Solid and rigid outer layer of our planet
2 100 km thick
3. divided into tectonic plates
Asthenosphere
1.underneath lithosphere
2.made of solid rock that moves slowly
3.can flow and be elastic
Outer core
1. composed mostly of iron and nickel
2.. metals found in liquid form
3.temppertaure of 7,200 to 9,000 degrees Fahrenheit
Inner core
1.hottest part of our planet
2.temperatures between 9,000 and 13,000 degrees Fahrenheit
3.solid layer

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Click, Read and Use the diagram to answer the following questions:
1. What are the characteristics of the oceanic and continental crust? contiental is thick (6-47miles) and is less dense the oceanic is thin (4miles) and has denser rocks.
2. What can thicken and thin the Earth's crust?Rapidly Cooling Interior
3. List the Earth's layers in order and how do geologists know the layers without actually drilling down there?

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Click on the ppt. below on Latitude, Longitude and Time Zones below:

1. Write the answers to all the questions within all ppt. slides. All these practice questions will be used in the Unit Test.

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Click and watch the video below Earth's Layers Characteristics:
1. Write 3 characteristics of each layer: Continental Crust, Oceanic Crust, Mantle, Lithosphere, Asthenosphere,  Outer Core and Inner Core...(that's 21
oceanic crust- under oceans, made of denser rocks, around 7 km thin
continental crust- makes up continents, made of less denser rocks, 8-70 km thick
lithosphere-contains the crust, upper mantle, made of rigid
asthenosphere-middle mantel, made of soft weak rock, can move slowly

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Layers of the Earth based on chemical composition and physical properties

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Click on the Quizlet below on Earth's Atmosphere-play 2 rounds of flashcards and 2 rounds of matching.
1. Write down your fastest times  12.1 and 8.7 seconds
2. Write 5 definitions you were weakest on. land breeze, sea breeze, stratosphere, troposphere, air pressure
3. Use all concepts for Unit Test and Diving Deeper Activities.
Don't Ignore tests, named your test every time.

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Start studying Earths Atmosphere. Learn vocabulary, terms, and more with flashcards, games, and other study tools.