Lake Superior is the largest of the five Great Lakes of North America.

Lake Superior is the largest of the five Great Lakes of North America. It is bounded to the north by the Canadian province of Ontario and the U.S. state of Minnesota, and to the south by the U.S. states of Wisconsin and Michigan. It is the largest freshwater lake in the world by surface area and is the world's third-largest freshwater lake by volume.

5 Great Lakes Map

http://www.michigan.gov/deq/0,1607,7-135-3313_3677-15926--,00.html

Five great lakes of United States

The Great Lakes are a collection of freshwater lakes located in eastern North America, on the Canada – United States border. Consisting of Lakes Superior, Michigan, Huron, Erie, and Ontario, they form the largest group of freshwater lakes on Earth.[1][2] They are sometimes referred to as the "Third Coast" by some citizens of the United States. Because of their size, types of ecosystems, and large abundances of beaches and coastal wetlands along their coasts, some regard them as inland seas or as one sea.

Layers of Earth

http://www.google.com/imgres?imgurl=http://oceansjsu.com/images/exp5_interior_earth.gif&imgrefurl=http://oceansjsu.com/105d/exped_commotion/5.html&h=319&w=480&sz=17&tbnid=MYRs3UmvKEk9vM:&tbnh=86&tbnw=129&prev=/images%3Fq%3Dlayers%2Bof%2Bthe%2Bearth&hl=en&usg=__oZN0tmXm3OTrVSWunN5JDRSrrzU=&ei=ngUfS7_ANdXhlAfmxICSDA&sa=X&oi=image_result&resnum=3&ct=image&ved=0CA0Q9QEwAg

Shashi Tharoor : Why nations should persue "soft" power

India is fast becoming super power nation says Kerla born Shashi Tharoor.