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{{merge from|Continental drift}}
{{merge from|Continental drift}}
'''Plate tectonics''' is a geological model of the movement of [[continental plate]]s, known as [[Continental drift]], which explains how the [[Earth]] once had a [[Pangaea|single large land mass]] which broke into [[continent]]s that continued to separate, and that they still move slowly today.
'''Plate tectonics''' is a geological model of the movement of continental plates, known as [[Continental drift]], which explains how the [[Earth]] once had a [[Pangaea|single large land mass]] which broke into [[continent]]s that continued to separate, and that they still move slowly today.
== Ocean floor mapping ==
== Ocean floor mapping ==