Marine Biology 5.09
5.09 Science
5.09 LAB DATA TABLE—HAND WITHOUT SHORTENING
Trial #
Time
1 1:32
2
1:26
3
1:29
4
1:32
5
1:22
Average Time 1:28
*Note: To get the average time for each hand, add up the times of the five trials then divide by 5.
5.09 LAB DATA TABLE—HAND WITH SHORTENING
Trial #
Time
1 2:43
2
2:55
3
2:54
4
2:56
5
2:48
Average Time 2:51
1. Which hand could remain under water longer? Why do you think?
My hand with the shortening could stay under water longer. I think this was like this because the shortening resembles the fat of a penguin, which is able to contain heat for a long time.
2. How could you expand this lab and investigate the insulating properties of different amounts of fat?
I could add more shortening or less shortening and record the times for each amount to see which better helps my hand to stay warm in the cold water.
3. Create a lab similar to the one above that would test the following: Do the insulating properties of fat increase as the amount of fat increases?
4. Title; More Fat, More Warmth?
5. Problem
Does adding more shortening around your hand in a bag in ice water keep your hand warmer for longer?
6. Hypothesis
I think adding more shortening around my hand will keep my hand warmer for longer in ice water since more fat = more insulation.
7. Materials
-shortening
-bag
-cold water
-bucket
-stopwatch
8. Procedure
Put your hand in a bag with shortening around it. Close the bag around your hand. Put your hand wrapped in shortening in a bucket of ice cold water. Record with the stopwatch how long you can keep it in there. Continue this procedure five times, adding more shortening to the bag each time. Check your data to see if the more shortening added to the bag kept it warmer longer or shorter.
5.09 LAB DATA TABLE—HAND WITHOUT SHORTENING
Trial #
Time
1 1:32
2
1:26
3
1:29
4
1:32
5
1:22
Average Time 1:28
*Note: To get the average time for each hand, add up the times of the five trials then divide by 5.
5.09 LAB DATA TABLE—HAND WITH SHORTENING
Trial #
Time
1 2:43
2
2:55
3
2:54
4
2:56
5
2:48
Average Time 2:51
1. Which hand could remain under water longer? Why do you think?
My hand with the shortening could stay under water longer. I think this was like this because the shortening resembles the fat of a penguin, which is able to contain heat for a long time.
2. How could you expand this lab and investigate the insulating properties of different amounts of fat?
I could add more shortening or less shortening and record the times for each amount to see which better helps my hand to stay warm in the cold water.
3. Create a lab similar to the one above that would test the following: Do the insulating properties of fat increase as the amount of fat increases?
4. Title; More Fat, More Warmth?
5. Problem
Does adding more shortening around your hand in a bag in ice water keep your hand warmer for longer?
6. Hypothesis
I think adding more shortening around my hand will keep my hand warmer for longer in ice water since more fat = more insulation.
7. Materials
-shortening
-bag
-cold water
-bucket
-stopwatch
8. Procedure
Put your hand in a bag with shortening around it. Close the bag around your hand. Put your hand wrapped in shortening in a bucket of ice cold water. Record with the stopwatch how long you can keep it in there. Continue this procedure five times, adding more shortening to the bag each time. Check your data to see if the more shortening added to the bag kept it warmer longer or shorter.