layers of the earth and plate tectonics activity

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Layers of the Earth and Plate Tectonics Activity

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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. - PowerPoint PPT Presentation

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Page 1: Layers of the Earth and Plate Tectonics Activity

Layers of the Earth and Plate Tectonics Activity

Page 2: 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

Page 3: Layers of the Earth and Plate Tectonics Activity

4 layers of the Earth

1. Crust2. Mantle3. Inner core4. Outer core

Page 4: Layers of the Earth and Plate Tectonics Activity

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)

Page 5: Layers of the Earth and Plate Tectonics Activity

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

Page 6: Layers of the Earth and Plate Tectonics Activity

PT- Activity

• Frosting- mantle• Graham cracker- crust1 Spread frosting on wax paper2 Place 2 graham cracker on frosting – make

sure they are touching

Page 7: Layers of the Earth and Plate Tectonics Activity

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

Page 8: Layers of the Earth and Plate Tectonics Activity
Page 9: Layers of the Earth and Plate Tectonics Activity

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

Page 10: Layers of the Earth and Plate Tectonics Activity

3 sub types

• Ocean to ocean• Ocean to continental • Continental to continental

• http://geology.com/nsta/convergent-plate-boundaries.shtml

Page 11: Layers of the Earth and Plate Tectonics Activity
Page 12: Layers of the Earth and Plate Tectonics Activity

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

Page 13: Layers of the Earth and Plate Tectonics Activity
Page 14: Layers of the Earth and Plate Tectonics Activity