Warm Up, Sept. 9th, 20131) Who proposed the idea of continental drift?2) What do the prefixes en- and ex- mean? Give one example of each in a word.3) Attempt to define the following:

Geo- Litho-Astheno- Terr-

“Latin and Greek” Derivatives*Start a new page in your notebook and always place derivatives there.

1) Geo earth2) Litho stone3) Astheno weak4) Spher ball, around5) Vectus to carry

Derivative Translation

Inner Core

A ball of hot, solid metals. Pressure is so

great that temperature

cannot turn the metals into

liquid.

http://images.sciencedaily.com/2010/12/101216142541.jpghttp://images.sciencedaily.com/2010/12/101216142541.jpg

Outer Core

A layer of liquid metals that

surround the core.

http://images.sciencedaily.com/2010/12/101216142541.jpghttp://images.sciencedaily.com/2010/12/101216142541.jpg

Mantle

Earth’s thickest layer that is

made up of hot rocks that are

less dense than the metallic

core.

http://images.sciencedaily.com/2010/12/101216142541.jpghttp://images.sciencedaily.com/2010/12/101216142541.jpg

Crust

A thin layer of cooled rock.

Two types of crust?

http://images.sciencedaily.com/2010/12/101216142541.jpghttp://images.sciencedaily.com/2010/12/101216142541.jpg

Lithosphere

A rigid layer of cooler rock in the crust and upper mantle.

http://images.sciencedaily.com/2010/12/101216142541.jpghttp://images.sciencedaily.com/2010/12/101216142541.jpg

Asthenosphere

A layer of hotter, softer rock in the upper mantle.

http://images.sciencedaily.com/2010/12/101216142541.jpghttp://images.sciencedaily.com/2010/12/101216142541.jpg

But how do large pieces of rock move

Continent

Tectonic Plate

NO THIS IS NOT HOW IT W

ORKS!

But how do large pieces of rock move

Continent

Tectonic Plate

They are connected to plates that move!

But how do plates move?

Origins: Earth’s Formation