This idea played a pivotal role in the development of the theory of plate tectonics which revolutionized geologic thought during the last quarter of the 20th century.
Seafloor spreading demonstration.
This week i came up with an effective demonstration for modeling the process of seafloor spreading.
Students learn about seafloor spreading in class doing a paper strip model of divergent and convergent plate boundaries.
Seafloor spreading occurs along mid ocean ridges large mountain ranges rising from the ocean floor.
Spreading rate is the rate at which an ocean basin widens due to seafloor spreading.
Spreading rates determine if the ridge is fast intermediate or slow.
Using four rectangular labs tables and two bed sheets i created a movable seafloor that can model a divergent boundary and a convergent boundary.