MondayDecember 10,

2012(Discussion and Worksheet –

Mountain Building)

The Launch PadMonday, 12/10/12

Which of the following energy sources is thought to drive the lateral motions of

Earth's lithospheric plates?A. gravitational attractive forces of the Sun

and MoonB. electrical and magnetic fields localized in

the inner coreC. export of heat from deep in the mantle to

the top of the asthenosphereD. swirling movements of the molten iron

particles in the outer core

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AnnouncementsOur next Quiz will be

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school today until 4:45.

Assignment Currently Open

Summative or

Formative?Date Issued Date Due Date Into

GradeSpeed Final Day

Quiz 11 S1 11/9 11/9 11/30 12/14

Quiz 12 S2 11/16 11/16 11/30 12/14

Quiz 13 S3 11/30 11/30 12/4 12/21

WS - Introduction to Continental Drift

and Plate TectonicsF8 12/3 12/7 12/12

Video WS - Plate Tectonics,

Volcanism, and Earthquakes

F9 12/4 12/7 12/12

Project – Plate Tectonics F10,11,12 12/5 12/7 12/11

Recent Events in ScienceHypergiant Star Amazes for 30 Years

Read All About It!www.sciencedaily.com/releases/20

12/12/121209152537.htm

A European research team has published the results of a 30-year study of an extraordinary

hypergiant star. They have found that the surface temperature of

the super-luminous star HR 8752 increased by about 3000 degrees in less than three decades, while

it went through an extremely rare stage called the 'Yellow

Evolutionary Void'. The discovery marks an important step closer to unravelling the evolution of the most massive

stars.

Convergent and Divergent Plate Boundaries

Mantle plumes extend upward from the mantle - core boundary and cause convection within the mantle.

Layering at 660 Kilometers

Models of Mantle – Plate Convection

Mantle plumes extend upward from the mantle - core boundary and cause convection within the mantle.

Whole - Mantle Convection

Models of Mantle – Plate Convection

Directions and Rates of Plate Motions

Directions and rates of plate motion in centimeters per year

Scientists have extrapolated present-day plate motions into the future some 50 million years.

Areas west of the San Andreas Fault will slide northward past the North American plate.

Plate Tectonics Into the Future

Africa collides with Eurasia, closing the

Mediterranean and initiating

mountain building.

Australia and new Guinea are on a collision course

with Asia.

Begin Worksheet

Mountain Building