Lesson 3: Ice on the Move

1
Lesson 3 Ice on the Move

• So when was the last time you saw an ice cube out
  for an afternoon stroll?
• How does ice move?

Photo courtesy of www.coolantarctica.com
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Photo courtesy of Andrill
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Ice Sheets

• The ice that covers Antarctica is actually a part
  of an Ice Sheet. Some parts of the Ice Sheet are
  over 2 miles thick .
• So how does a huge piece of ice move?
• The base of the Ice Sheet moves over land. It
  actually moves very slowly grinding against
  mountains, valleys, and carrying rocks down hill
  as it goes

Photo Courtesy of David Blaine, USAP
4
Ice Shelf

• A thick floating platform of ice flows down to
  the coastline and onto the ocean surface.
• Photo courtesy of www.earth.rice.edu