Download Section 8-4

Section 8-4
Movement of Earth’s Plates
Earth’s Plates
• Earth’s crust consist of 12 major pieces called
plates
– Theory of plate tectonics
• Earth’s plates move slowly in various directions
• Landmasses have changed because of this movement
• Movement called continental drift
Distribution of Organisms
• The movement of earth’s plates have affected
organisms by where they are located
– As plates move, isolation and climate / environment
have changed leading to evolution