Arctic Educational Pages:

Definitions courtesy of Wikipedia

 The Arctic Circle:  This is an imaginary line around the Earth at about 66°33' North Latitude this defines the boundary of the Arctic. It marks the start of the area where, for at least one day each year, the sun does not completely set June 21 or rise December 22. more>>

https://en.wikipedia.org/wiki/North_Pole 

Other Resources:
http://nsidc.org/arcticmet/basics/arctic_definition.html

https://en.wikipedia.org/wiki/Arctic_Circle

http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level2/earth.html

Auroras: This is sometimes called the northern and southern (polar) lights or aurorae (singular: aurora), are natural light displays in the sky, usually observed at night, particularly in the polar regions. They typically occur in the ionosphere. They are also referred to as polar auroras. In northern latitudes, the effect is known as the aurora borealis, named after the Roman goddess of dawn, more>>

https://en.wikipedia.org/wiki/Aurora

Other Resources:
http://www.athropolis.com/arctic-facts/fact-nlights-cause.htm

Polar Exploration:  This is the physical exploration of the Arctic and Antarctic regions of the Earth. It is also denotes the historical period during which mankind most intensely explored the regions north of the Arctic Circle and south of the Antarctic Circle. Humankind has explored the north and south extremes since 325 BCE, although physical contact with remote areas, including much of the Antarctica continent, has only occurred since 1900. more>>

https://en.wikipedia.org/wiki/Polar_exploration 

The Predatory Polar Bear: (Ursus maritimus) is a bear native to the Arctic Ocean and its surrounding seas. The world's largest carnivore found on land, and shares the title of largest land predator with the Kodiak Bear, an adult male weighs around 400 - 680kg (880–1,600 lb), while an adult female is about half that size. Although it is closely related to the brown bear, it has evolved to occupy a narrow ecological niche, with many body characteristics adapted for cold temperatures, for moving across snow, ice, and open water. Adult Polar Bears have no real natural predators, though Walruses are big and strong enough to kill them. An adult Polar Bear can reach maximum speeds of up to 25mph (40kph) at a sprint and also strong enough to kill their prey with only one single blow using their paw. Due to current climate changes and the increases of the melting sea ice each year scientists predict Polar Bears could be totally extinct by 2100 if this continues.  more>>

https://en.wikipedia.org/wiki/Polar_bear

https://www.britannica.com/animal/polar-bear

https://www.bing.com/search?q=polar+bear+predator+facts

Other Resources:
http://kids.nationalgeographic.com/Animals/CreatureFeature/Polar-bear