understanding earths interior

Download Understanding Earths Interior

Post on 10-Jan-2016

32 views

Category:

Documents

0 download

Embed Size (px)

DESCRIPTION

Understanding 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

TRANSCRIPT

  • 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

  • CrustSolid

    Composition: Oxygen, aluminum, Calcium, Iron, sodium, potassium, magnesium, Silicon

    5-40 km thick but has an average of 32 km

  • Earths Crusthttp://www.dnr.sc.gov/geology/images/Earths_crust.gif

    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

    http://education.sdsc.edu/optiputer/flash/convection.htm

    http://www.manatee.k12.fl.us/sites/elementary/samoset/altconvection.htm

  • 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

    Liquid layer

  • 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?

    CoreCrust Mantle

  • 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.

    http://meeting.zoho.com/login.do?serviceurl=%2Fhome.do

    Back to Beginning

  • That is Correct

  • That is Super

  • That is Awesome

  • You Nerd You

  • AHHHH Try Again!!!!!!

    *