Texas Instruments
Texas Instruments: Insulating Against the Cold
In this activity, students use a Temperature Sensor to test the insulating efficiency of different samples of fabric. They examine the properties that make a fabric a better insulator. They extend this to understand how animals adapt to...
Smithsonian Institution
National Museum of Natural History: American Mammals: Arctic Fox
An animal that does not begin to shiver until temperatures reach -70 C, the arctic fox is one of the most superbly cold-adapted mammals. Its dense, multi-layered coat, which is several inches thick during winter, provides excellent heat...