How Earth Resembles a Gooey Confection
Ant contributes a link spotted on Neatorama that may upset middle school Earth Science teachers, writing "LiveScience says Earth's simple schematic is not core, mantle, and crust anymore. It is more like the gooey center of a chocolate morsel harboring peanut butter and honey. Inner Earth is far more nuanced than outward appearances would suggest. A new model is proposed in the May 2, 2008, issue of the journal Science."
I agree. The elasticity concept applies:
http://1ne1.com/n-y/