![Page 1: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/1.jpg)
Bellringer
• Make your voc foldable
• Homework:
• Illistrations• Essential book page 68-76
![Page 2: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/2.jpg)
• http://www.learner.org/interactives/dynamicearth/index.html
![Page 3: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/3.jpg)
Bellringer
Match your voc words
• Homework:
• Finish handout
![Page 4: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/4.jpg)
• 8-3.6 Explain how the theory of plate tectonics accounts for the motion of the lithospheric plates, the geologic activities at the plate boundaries, and the changes in landform areas over geologic time.
![Page 5: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/5.jpg)
• It is essential for students to know that the theory of plate tectonics explains why and how large sections of Earth’s crust, called lithospheric plates, move. A hypothesis of continental drift was developed before the present theory of plate tectonics. It was based on continent shape, fossil evidence, rock, and climate clues. This hypothesis later led to the theory of plate tectonics when evidence was found as to why the plates could move. Plate tectonics explains how many Earth features form.
![Page 6: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/6.jpg)
Motion of the Lithospheric Plates
• • Plates float on the upper part of the mantle.
• • Convection currents can cause the asthenosphere to flow slowly carrying with it the plates of the lithosphere.
• • This movement of plates changes the sizes, shapes, and positions of Earth’s continents and oceans.
![Page 7: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/7.jpg)
Geologic Activities at Plate Boundaries
• Divergent boundary—where two plates are moving apart
• • most located along mid-ocean ridge (sea-floor spreading);
• • new crust forms because magma pushes up and hardens between separating plates.
![Page 8: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/8.jpg)
Convergent boundary—where two plates come together and collide
• • activity depends upon the types of crust that meet;
• • more dense oceanic plate slides under less dense continental plate or another oceanic plate – subduction zone, some crust is destroyed;
• • two continental plates converge, both plates buckle and push up into mountain ranges;
![Page 9: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/9.jpg)
Transform boundary—where two plates slide past each other
• • crust is neither created nor destroyed;• • earthquakes occur frequently along this
type of boundary.
![Page 10: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/10.jpg)
Changes in Landform areas over Geologic Time
• • Plates move at very slow rates – from about one to ten centimeters per year;
• • At one time in geologic history the continents were joined together in one large landmass that was called Pangaea.
• • As the plates continued to move and split apart, oceans were formed, landmasses collided and split apart until the Earth’s landmasses came to be in the positions they are now;
![Page 11: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/11.jpg)
• • Evidence of these landmass collisions and splits comes from fossils, landform shape, features, and rock structures, and climate change;
• • Landmass changes can occur at hot spots within lithospheric plates;
• • Earth’s landmasses will continue to move and change during the geologic time of the future.
![Page 12: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/12.jpg)
Bellringer
• Make foldable of new voc words in your isn
• Homework: make sure essentials book is up to date p 1-28,68-76, 130-144
• Draw illistrations
![Page 13: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/13.jpg)
quizConvergentOceanic to oceanic
Subduction Zonevolcano
ConvergentCont to cont
Fold and thrust
ConvergentCont to oceaNic
TRENCH
Divergent
RIFTING causes SEAFLOOR SPREADING
Transform
earthquakes
![Page 14: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/14.jpg)
8.3-6
Explain how the theory of plate tectonics accounts for the motion of the lithospheric plates, the
geologic activities at the plate boundaries, and the changes in landform areas over geologic time.
![Page 15: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/15.jpg)
Theory of Plate Tectonics
Plate TectonicsPlate Boundaries
Causes of Plate Tectonics
![Page 16: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/16.jpg)
Plate Tectonics
![Page 17: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/17.jpg)
What is Plate Tectonics
• The Earth’s crust and upper mantle are broken into sections called plates• Plates move around on top of the
mantle like rafts
![Page 18: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/18.jpg)
Plates
• Plates move at very slow rates – from about one to ten centimeters per year
![Page 19: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/19.jpg)
![Page 20: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/20.jpg)
Pangaea
• At one time in geologic history the continents were joined together in one large landmass that was called Pangaea
![Page 21: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/21.jpg)
![Page 22: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/22.jpg)
• As the plates continued to move and split apart, oceans were formed, landmasses collided and split apart until the Earth’s landmasses came to be in the positions they are now;
![Page 23: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/23.jpg)
Motion of the Lithospheric Plates
![Page 24: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/24.jpg)
What is the Lithosphere?
• The crust and part of the upper mantle = lithosphere–100 km thick –Less dense than the material below
it so it “floats”
![Page 25: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/25.jpg)
Motion of the Lithospheric Plates
• Plates float on the lower part of the mantle. • This movement of plates changes the sizes,
shapes, and positions of Earth’s continents and oceans.
![Page 26: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/26.jpg)
What is the Asthenoshere?
• The plastic layer below the lithosphere = asthenosphere• The plates of the lithosphere float
on the asthenosphere
![Page 27: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/27.jpg)
![Page 28: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/28.jpg)
2 Types of Plates
• Ocean plates - plates below the oceans• Continental plates - plates below
the continents
![Page 29: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/29.jpg)
Plate Boundaries
![Page 30: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/30.jpg)
Divergent boundary
• Where two plates are moving apart;
• most located along mid-ocean ridge (sea-floor spreading);
• new crust forms because magma pushes up and hardens between separating plates.
![Page 31: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/31.jpg)
Divergent Boundaries
• Boundary between two plates that are moving apart or rifting
• RIFTING causes SEAFLOOR
SPREADING
![Page 32: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/32.jpg)
Features of Divergent Boundaries
• Mid-ocean ridges• rift valleys• fissure volcanoes
![Page 33: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/33.jpg)
![Page 34: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/34.jpg)
![Page 35: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/35.jpg)
![Page 36: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/36.jpg)
Convergent boundary• Where two plates come
together and collide; • activity depends upon the
types of crust that meet; • more dense oceanic plate
slides under less dense continental plate or another oceanic plate – subduction zone, some crust is destroyed;
• two continental plates converge, both plates buckle and push up into mountain ranges;
![Page 37: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/37.jpg)
Convergent Boundaries
• Boundaries between two plates that are colliding
• There are 3 types…
![Page 38: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/38.jpg)
Type 1• Ocean plate colliding with a less
dense continental plate• Subduction Zone: where the less
dense plate slides under the more dense plate• VOLCANOES occur at subduction
zones
![Page 39: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/39.jpg)
![Page 40: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/40.jpg)
Andes Mountains, South America
![Page 41: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/41.jpg)
Type 2
• Ocean plate colliding with another ocean plate• The less dense plate slides under
the more dense plate creating a subduction zone called a TRENCH
![Page 42: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/42.jpg)
![Page 43: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/43.jpg)
Aleutian Islands, Alaska
![Page 44: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/44.jpg)
Type 3
• A continental plate colliding with another continental plate• Have Collision Zones:–a place where folded and thrust
faulted mountains form.
![Page 45: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/45.jpg)
![Page 46: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/46.jpg)
![Page 47: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/47.jpg)
Transform boundary
• Where two plates slide past each other;
• crust is neither created nor destroyed;
• earthquakes occur frequently along this type of boundary.
![Page 48: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/48.jpg)
Transform Fault Boundaries
• Boundary between two plates that are sliding past each other• EARTHQUAKES along faults
![Page 49: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/49.jpg)
![Page 50: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/50.jpg)
San Andreas Fault, CA
![Page 51: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/51.jpg)
Evidence of these landmass collisions and splits comes from
fossils, landform shape, features, and rock structures, and climate
change
![Page 52: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/52.jpg)
Changes in Landform areas over Geologic Time
• Landmass changes can occur at hot spots within lithospheric plates;
• Earth’s landmasses will continue to move and change during the geologic time of the future.
![Page 53: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/53.jpg)
Causes of Plate Tectonics
![Page 54: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/54.jpg)
Convection Currents
• Hot magma in the Earth moves toward the surface, cools, then sinks again.• Creates convection currents
beneath the plates that cause the plates to move.
![Page 55: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/55.jpg)
Convection currents
• deep inside Earth can cause the asthenosphere to flow slowly carrying with it the plates of the lithosphere.
![Page 56: Bellringer Make your voc foldable Homework: Illistrations Essential book page 68-76 Make your voc foldable Homework: Illistrations Essential book page](https://reader035.vdocuments.us/reader035/viewer/2022062421/56649e225503460f94b0fc45/html5/thumbnails/56.jpg)