The following sites provide information about different methods of staying warm in cold weather. Use these sites to help you prepare for the first challenge.

How A Spacesuit Works
http://www.howstuffworks.com/space-suit2.htm

How Blubber Works
http://www.howstuffworks.com/whale2.htm

Cold Weather Clothing -- How to Stay Warm
http://bicycling.about.com/library/weekly/aa103100a.htm

Learn to Dress for Cold Weather
http://www.janbrett.com/piggybacks/wear.htm

Destination Outdoors
http://www.destinationoutdoors.com/textarticles/coldweathertext.html