Inside Earth Plate Tectonics Chapter 1 Section 4
About this set
Created by:
LNittoso on November 7, 2011
Subjects:
science, earth science, plate tectonics
Description:
Inside Earth Plate Tectonics Chapter 1 Section 4
Vocabulary from Inside Earth Textbook // Plate Tectonics Unit in 6th Grade
Order by
5 terms
Terms | Definitions |
|---|---|
 mid-ocean ridge | under sea mountain range where new ocean floor is is produced (divergant boundary) |
| sonar | device that determines distance of an object under water using sound waves and recording the echos those waves make |
| sea-floor spreading | process by which molten (melted) rock adds new ocean crust to the ocean floor |
| deep-ocean trench | deep valley along ocean floor where ocean crust slowly sinks down towards the mantle |
| subduction | process by which ocean crust sinks below a deep ocean trench, back into the mantle (convergant boundary) |
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