understanding earths interior
Post on 10-Jan-2016
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DESCRIPTIONUnderstanding Earths Interior. This Activity will allow you to become familiar with the Earths layers and the process that occur within them. Click on the star to Begin. Core. Follow-Up Exercise. Crust. Solid - PowerPoint PPT Presentation
Understanding Earths InteriorThis Activity will allow you to become familiar with the Earths layers and the process that occur within them.
Click on the star to BeginCoreFollow-Up Exercise
Composition: Oxygen, aluminum, Calcium, Iron, sodium, potassium, magnesium, Silicon
5-40 km thick but has an average of 32 km
Earths crust is composed of a dozen plates covering earths surface. These dozen are either oceanic or continental crust.
Click on the star to continue..Core
Mantle2800 km thickIs both solid and liquid Composition: Silicon, Oxygen, Iron, MagnesiumThere are convection cells in the mantle that cause important forces on the surface.Next: What are convection Cells?
Click on Links to Watch Animations
Click on the star to continueCore
CoreInner CoreComposition- Iron and Nickel
1,200 km thick
2000-5000 degrees Celsius
Solid, because of enormous pressure of overlying matter
The core is divided into two layer: the Inner and Outer coreOuter CoreComposition - Nickel and Iron870 degree Celsius
2,250 km thick
Earths Magnetic Fieldwww.gly.fsu.edu Earths rotation causing the liquid iron outer core to spin around the solid iron inner core is believed to cause the formation of Earths Magnetic Field.
Quick QuizEarths crust is divided into two types. They are? Surface and continentalContinental and OceanicOceanic and MantleMantle and Surface
Quick QuizEarths inner core is hotter and solid, while the outer core is colder and liquid? Why is this?
The inner core is made out of material that resists heat better.The Outer core is not even solid, but is liquid also. The inner cores overlying pressure causes it stay solid.
Quick QuizTemperature increases with pressure, then this layer has the lowest pressure?
Quick QuizThis is formed by movement of mantle material?
Magnetic Field Convection CellsEarths rotation
Follow-Up ExerciseClick the Link to take you to ZOHO Meeting.Log on and join your group meeting and answer the questions.
Back to Beginning
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