Arctic adaptations

We are continuing to find out about the Arctic and how animals have adapted to deal with the freezing temperatures. This week we investigated how effective blubber is at insulating animals from the cold.

Here we are spreading the lard evenly around the hand of the volunteer inside a plastic bag.

We took the temperature of the hand inside the blubber mitten before it went into the ice water.

The volunteer put their hand inside the mitten into the ice water (1degree C) for 5 minutes.

After 5 minutes the temperature of the hand in the glove had gone up!

Then the volunteers did the same with their other hand without a mitten made of blubber. They lasted for 1.5 minutes and the temperature of their hand dropped from 30 degrees C to 8 degrees C!

Finally everyone wanted to find out what it felt like to put their hand in the ice - water... they lasted for 45 seconds and there was a lot of shrieking!!!!!!!!!

We concluded that 4 inches of blubber would easily keep a polar bear warm in sub zero temperatures.

Why not have a look at some of our Prezi presentations about Arctic food chains on our new wiki project pages!
Here is an example - this is Leah's Prezi: