LAYERS OF THE EARTH.

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Presentation transcript:

LAYERS OF THE EARTH

I owe Mom cash always. Inner Core Outer Core Mantle Crust Atmosphere

EARTH’S CORE MADE OF NICKEL AND IRON TWO PARTS-INNER CORE AND OUTER CORE

INNER CORE SOLID VERY DENSE TEMPERATURE OF 5,OOO DEGREES CELSIUS RESPONSIBLE FOR MAGNETIC FIELD

OUTER CORE LIQUID TEMPERATURES RANGE FROM 2200 DEGREES CELSIUS TO 5000 DEGREES CELSIUS THICKER THAN INNER CORE

SEISMIC WAVES The shock waves produced by an earthquake. There are 2 types of Seismic waves. P waves and S waves See example of how they move on the computer.

HOW THE WAVES MOVE P WAVES SLOW DOWN WHEN THEY GET TO THE OUTER CORE AND SPEED UP AGAIN. S WAVES STOP WHEN THEY GET TO THE OUTER CORE.

SEISMOGRAPH Detects the presence of an earthquake. Earthquakes typically happen near transform boundaries.

THE MANTLE MAKES UP 80% OF VOLUME AND 68% OF MASS MADE OF SILICON, OXYGEN, IRON AND MAGNESIUM. HAS PLASTICITY-THE ABILITY OF A SOLID TO FLOW LIKE A LIQUID.

MOHO BOUNDARY PLACE WHERE THERE IS A CHANGE IN THE SPEED OF THE SEISMIC WAVES, INDICATING A CHANGE OF STATE. BETWEEN CRUST AND MANTLE.

THE CRUST THIN OUTERMOST LAYER OF THE EARTH. MADE OF IGNEOUS, SEDIMENTARY, AND METAMORPHIC ROCKS

OCEANIC CRUST LESS THAN 10 KILOMETERS THICK; AN AVERAGE OF 8 KM. MADE OF BASALT FOUND UNDER THE OCEANS

CONTINENTAL CRUST BENEATH THE CONTINENTS AVERAGE OF 32 KILOMETERS THICK MADE OF GRANITE AND BASALT

LITHOSPHERE TOPMOST SOLID PART OF THE EARTH. BROKEN INTO 7 SECTIONS CALLED LITHOSPHERIC PLATES PLATES MOVE ON MOLTEN MATERIAL OF THE MANTLE