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Layers of the Earth and Plate Tectonics Activity

Layers of the Earth and Plate Tectonics Activity. What is Geology. Geo - Earth Ology is the study of This activity will help us study the earth by learning what it is made of and how it can be changed. 4 layers of the Earth. Crust Mantle Inner core Outer core. Milky Way - cut in half .

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Layers of the Earth and Plate Tectonics Activity

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  1. Layers of the Earth and Plate Tectonics Activity

  2. What is Geology • Geo- Earth • Ology is the study of • This activity will help us study the earth by learning what it is made of and how it can be changed

  3. 4 layers of the Earth • Crust • Mantle • Inner core • Outer core

  4. Milky Way- cut in half • Chocolate- crust- thinnest layer made of rocks and soil (land we walk on and under the sea) • Caramel- mantle- holt molten rock, what would come out of a volcano • Light brown layer- outer core- liquid iron • Bottom layer of chocolate- inner core, solid iron and is the hottest layer (almost as hot as sun)

  5. Plate Tectonics • Plates- large section of the Earth’s crust that slowly move over partially melted rock in the upper mantle • This movement explain how the Earth’s surface has changed over time and we can predict how it will change in the future  formation, movements, collusions, destruction of Earth’s crust

  6. PT- Activity • Frosting- mantle • Graham cracker- crust • Spread frosting on wax paper • Place 2 graham cracker on frosting – make sure they are touching

  7. Divergent Plate Boundary • Move plates apart to expose mantle spreading zone. • When plates move apart, it creates cracks in the Earth called rift valley • Allows hot, melted rock to come up through the cracks  volcano opening is formed • Sea floor spreading- new sea floor created • http://geology.com/nsta/divergent-boundary-oceanic.gif

  8. Convergent Plate Boundary • Push plates back together until the middle forms a ridge • When plates collide they create mountains this is called a collision zone • Appalachian mountains – Africa collided with North America during formation of Pangea • Destroy sea floor- ocean plates more dense than land plates, when they converge ocean plates slide under land plates

  9. 3 sub types • Ocean to ocean • Ocean to continental • Continental to continental • http://geology.com/nsta/convergent-plate-boundaries.shtml

  10. Transform Plate boundary • Slide the edges of plates against each other • This horizontal grinding and sliding of the plates causes earthquakes • This is called a shearing fault • A fault is a fracture in the Earth’s crust • New Madrid Fault- runs along the eastern border of Missouri • San Andreas Fault- most studied

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