Magnetic Poles & Earth’s Tomography. Objectives: Determine what drives the Earth’s magnetic field & how it changes over time. Determine what causes the.

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Presentation transcript:

Magnetic Poles & Earth’s Tomography

Objectives: Determine what drives the Earth’s magnetic field & how it changes over time. Determine what causes the northern lights. Determine how indirect evidence is used to determine what the inside of the Earth is like. Identify features in the interior of the Earth from seismic tomography. Determine how convections works in the Earth.

Which way does it point? Click here: Interactive Magnetic Field 1

Green lights in the sky?? Click here for: The Northern Lights videoNorthern Lights Click here for Northern Lights websiteNorthern Lights website 2

What’s a ct scan? Click Here: Body CT Scan Earth’s CT Scan 3

Do the wave! 4

Earth shaking! Click Here for animation: Savage Earth 5

Crystals, oh my! 6

Setting boundaries 7

Launched in the pacific 8

Half the Earth 9

Seismic Tomography What do these depict? 10

Rise and fall of magma 11

Convection in the earth Click Here for animations: Convection #1 12

Convection in the earth #2 13

Hot spots in the United STates 14