Editing Polar Bear Glove (section)

== Demonstration ==
;Preparation:
* Create the Polar Bear Glove: scoop several spoonfuls of shortening into a sandwich bag. Put a second sandwich bag over one hand, and push it inside the bag with shortening and smooth it out. Add shortening into the bag if necessary until the outer bag is filled smoothly around the inner bag. seal the edges of both bags together using the duct tape, making sure they are sealed fully around the outside.
* Alternative: Fill a gallon sized bag with enough shortening to make a semi-thick layer throughout the bag while flat on a table. close the bag, and use duct tape to seal it firmly. Put a sandwich bag on one hand, and place it on top of the gallon bag, with the sealed end towards your wrist. Wrap the bag around your hand, and duct tape it together so it stays wrapped around your hand. finally, duct tape the lip of the sandwich bag to the gallon bag so they stay together.

;Presentation:
# Set out the bowl and fill it with ice and water. When students come up, ask them to hold one hand in the ice water for several seconds. How cold is it? Do they think they could keep their hand in very long? Why or why not?
# Have them put the polar bear glove on and put their hand back into the water. Be sure they don't put their hand in far enough for water to come into the glove as well. Ask the student if the water is more tolerable with the glove on. Do they think they could keep their gloved hand in very long? Why or why not?