The Magic School Bus In the Arctic
Field Trip Notes
When Arnold discovers that his cocoa is cold, he demands to know where the hot went. In response, Ms. Frizzle whisks the class to the Arctic. What's the freezing Arctic got to do with heat? While the kids try to find out, the Bus's engine freezes and the Bus floats away on an ice floe with Ralphie and Phoebe inside! As the bus moves away, so does the heat from everyone's bodies. How can Ms. Frizzle's kids insulate their bodies to keep the heat in? Can they rescue Ralphie and Phoebe before they all become the Ice Cube Kids?
The Inspiration of Insulation
Time: 30 minutes
Group Size: 2-4
The Magic School Bus kids are freezing! When they discover that heat flows from hotter to colder things, they find ways to block heat escape routes. Your kids explore how insulation works to keep in body heat.
What You Need
For each group:
Ahead of time:
Comfort in the Cold, by Arnold For each group, tightly seal some ice and water in one zipper bag. Put the shortening in a second bag.
Talk About It
Ask: How do layers of clothes, fur coats, and fat keep humans and animals warm when it’s cold outside? (Fat and trapped air in fur or clothing layers block the flow of body heat into the cold.)
What To Do
In two demonstrations, kids explore how air and fat can slow the flow of body heat into ice water.
Challenge kids to insulate jars of warm water so that they keep the heat as long as possible. Dip a finger in each of the jars after an hour. Which stayed the warmest? Why?