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Ice and Friction Science Activity - How Pressure Affects Glaciers

Materials

  • 2 Paper cups that hold at least 1 1/2 cups of water
  • 2 Flat pans or cookie sheets
  • 2 1/2 cups Water
  • 1 Heavy object or rock
  • 2 measuring cups or lab beakers to measure water

Instructions

  • Fill each paper cup with 1 1/4 cup of water
  • Place on an even surface in the freezer overnight.
    Ice and Friction Experiment - freeze two cups of water
  • Gather the two frozen "glaciers" in the paper cups, a heavy object, and 2 pans.
    Ice and Friction Experiment - gathrer two ice glaciers, rock, and 2 pans
  • Place each "glacier" in a pan Then, place the havy object on top of one glacier.
    Ice and Friction Experiment - place heavy object on one of the glaciers
  • Watch the puddling of water at the base of each "glacier" after 1 minute, after 2 minutes. What do you see?
    Ice and Friction Experiment - place heavy object on one of the glaciers
  • Wait about another 10 minutes. What happened?
    Ice and Friction Experiment - check the glaciers after a few minutes
  • Keep watching. If you are able, video the activity. Does the object eventually fall? Why do you think it did?
    Ice and Friction Experiment -
  • Look at the top of the two "glaciers" once the object falls. What do you notice?
    Ice and Friction Experiment - - top of glacier with no pessure
  • Ice and Friction Experiment - top of glacier with friction
  • Once the heavy object falls, place it flat in the pan up against the "glacier", let sit.
    Ice and Friction Experiment -friction demonstration
  • After another 60 minutes, look at the "glaciers." What do you notice about the glacier with the heavy object up against it?
    Ice and Friction Experiment -friction demonstration
  • When the "glaciers" have been melting for 90 minutes, carefully remove them from the pan and measure the water in each pan, individually. Which pan had more water?