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Cold Buster.

In "Freeze Factor" (p. 14), you learned about hypothermia. Now, Professor Giesbrecht is sending a team of scientists, including you, to a frozen lake to find a good site for his next experiment. You don't want to turn into a human popsicle, so you better pack well for the expedition. Climb into the "Lab Freezer" (see box, below) to dig up the information needed to fill out your team's Cold Survival Guide (below).



1. First, let's pack your personal equipment. On the top of the list: appropriate clothing. To stay warm in icy weather, clothes should be worn in --. With this system, you can easily adjust your body's needs to fit changing activities and weather conditions.

2. You learn that there are many good--and bad--winter clothing materials. One good fabric that insulates well and dries quickly is --, which is usually made out of plastic. The downer: It's bad at protecting you from the --. The most useless winter fabric may be --. It absorbs moisture, and once wet, it's almost impossible to dry.

3. It will be very cold and windy by the lake. Since you could lose a lot of -- from the head, be sure to pack a hat. Also, bring a face mask to protect your face from --. Don't forget to pack your --; they tend to keep your hands warmer than --.

4. Professor Giesbrecht wants you to spend a few days by the lake. You'll need to camp overnight. Next items to pack: food. To keep healthy during winter backpacking trips, experts estimate that you need to eat about -- to -- calories per day.

5. Your mom may scream at you for eating in bed, but for this trip, it's not a bad idea. One trick to help thaw fresh items like -- and -- for next day's lunch: Put them in your sleeping bag at night. If snoozing by the lake gives you nightmares, and you wake up feeling cold and hungry, eat --, not -- That's because it breaks down more slowly in the body, releasing heat over a longer period of time.

6. Uh oh! You suspect Fred Freezing, a member of your team, has hypothermia. You take his temperature. Yikes! It's 94 degrees Fahrenheit. He has this kind of hypothermia: . List three of his symptoms. --

7. Professor Giesbrecht appoints you team leader. You are to take care of Fred. He asks you to e-mail him a status report at the end of the day. (Write this e-mail. Summarize what you did to save Fred.)

1. layers

2. pile or fleece; wind; cotton

3. heat; frostbite; mittens; gloves

4. 4,500; 5,000+

5. meat, cheese; proteins, sugars

6. moderate; answers will vary but should include three of the following: slurred speech, violent shivering, poor motor coordination, dazed consciousness, irrational behavior, slowed pace, confusion

7. Answers will vary
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Title Annotation:Language Arts And Research Skills
Publication:Science World
Date:Nov 22, 2004
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