Get Polar Bear Blubber Images. Shortening is a fat just like blubber is, and fat acts like an insulator. Objective • to use critical thinking skills to hypothesis how different materials can help keep us warm in cold water.
We recommend that you don't fill the sandwich bag more than halfway with shortening.
Blubber, paired with a thick skin and double layers of fur, keep polar bears warm and stabilized all year through. Other things like organs are extremely nutritious, but do not provide energy for as long as blubber does, and energy is a far greater concern for most preda. Have you ever wondered how animals can live in super cold places all the time? Placing the shortening within two ziplock bags creates a barrier between it and children's hands, while also mimicking the effects of the blubber layer.
