Label the Earth Diagram



|Earth Diagram | |

Read the definitions, and then label the diagram.

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|Definitions |

|crust - the rigid, rocky outer surface of the Earth, composed mostly of basalt and granite. The crust is thinner under the oceans. |

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|Lithosphere: Is made up of the Crust and the uppermost part of the mantle. |

|Has a rigid outer layer that is broken into 30 sections or plates |

|Two types: |

|Oceanic lithosphere: Oceanic Crust and exists in the ocean basins |

|Continental lithosphere: Continental Crust under land/continents |

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|Asthenosphere: is the outer layer of the mantle, solid rock that flows slowly (like hot asphalt). Lies between 100 and 200km below Earth’s |

|surface |

|Involved in plate movement, Has relatively low density |

|mantle - a rocky layer located under the crust - it is composed of silicon, oxygen, magnesium, iron, aluminum, and calcium. Convection (heat)|

|currents carry heat from the hot inner mantle to the cooler outer mantle. |

|inner core - the solid iron-nickel center of the Earth that is very hot and under great pressure. |

|outer core - the molten iron-nickel layer that surrounds the inner core. |

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