Hands-On Activity: Blubber & Fur Insulation Experiment
Big Question:
How did Ice Age animals stay warm in freezing environments?
Objective:
Demonstrate how a thick layer of blubber helped Ice Age mammals survive extreme cold.
Materials Needed
- Disposable plastic gloves
- Crisco or shortening
- Large bowl or bin
- Ice and cold water
- Optional: thermometer
- Fill a bowl with cold water and ice.
- Turn one glove inside out and coat the outside generously with Crisco (about ½–1 inch thick).
- Turn the glove right-side out so the Crisco is trapped between the glove layers.
- Leave the second glove plain (or use a bare hand for comparison).
- Set the Ice Age context:
Explain that during the Ice Age, giant mammals like mammoths lived in freezing temperatures. They evolved thick layers of fat called blubber to help keep their bodies warm. - Test the blubber:
Have your child place one hand inside the blubber glove and the other hand into the plain glove (or leave it bare). - Into the ice water:
Slowly place both hands into the ice water at the same time. - Observe:
Ask your child to describe how each hand feels after 10–30 seconds.- Which hand feels colder?
- Which hand feels more protected?
- Level 1: “Blubber is a thick layer of fat that keeps animals warm in cold places.”
- Level 2: “Blubber slows heat loss by trapping warmth near the body. Ice Age mammals combined blubber, thick fur, and large body size to survive glacial climates.”
- How would this blubber feel in hot weather?
- Why would animals with lots of blubber struggle as the Ice Age ended?
- Why does this help explain why some megafauna went extinct?
Explain that when glaciers melted and temperatures warmed:
- Thick blubber became a disadvantage
- Large animals needed more food
- Many Ice Age giants could not adapt fast enough
Safety Notes
- Keep water cold, not painfully icy
- Stop immediately if the child is uncomfortable
- Wash hands thoroughly afterward