Flubber Lab:

Students make a "flubber" glacier using glue, water and detergent and construct a glacier valley using plastic sheeting.  Flubber behaves in mechanically similar ways to glacier ice, undergoing plastic deformation at low stresses and brittle failure at high stresses. Students are encouraged to run several tests with diferent values for valley slope, glacier mass, temperature, and basal conditions. A descriptive lesson plan can be found here.


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  1. combine the ingredients in "mix #1"
  2. combine the ingredients in "mix #2"
  3. pour mix #2 into mix #1 and knead with you hands
  4. flubber can last for months if stored in an air-tight container
          ** we usually double or triple the recipe **