Age Group: K-5th grade

Total time: 20 minutes

Supplies

• Ice cubes

• Cold water

• Shortening

• Sandwich baggies

• Large bowl

Directions

1. Put a large bowl of water into the freezer to let it get extra cold, and then add ice cubes.

2. Put a bare hand into the icy water first, to get an idea of how cold the water really is.

3. Stick your hand inside a Ziploc sandwich bag with a bar of shortening wrapped around it, and then another sandwich bag covering the shortening, to keep it from falling off in the bowl.

4. Observe how you don't feel the cold-ness of the water when you have the shortening wrapped around the baggy. This is like the insulation arctic animals have that allow them to swim in extra cold waters.