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4. Unroll the sock or mitten so that it covers the top of the cup, but make sure you can still read the thermometer.

5. Measure the temperature of each container. Then, measure the temperature in each container every five minutes for at least 20 minutes.

6. What did you find?

7. What does this say about wool? Does it keep you warm even when wet?

8. Why do you think animals such as mountain goats or sheep are adapted for life in cold environments?

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