Plate Tectonics: A Scientific Revolution Unfolds > Concept #8 Quiz
Thermal convection theory for the Earths mantle.
The Earth is currently expanding (growing).
The Earth is currently contracting (shrinking).
Moon and the Suns gravitation has shifted the Earths crust.
Hot material sinks as broad sheets and ribbons.
Cool material sinks as slender, pipe-like plumes.
Cool material sinks as thin slabs.
Hot material rises as broad sheets and ribbons.
Lava from ocean ridge volcanoes likely came from melting the oceanic crust.
Lava from Hawaiian volcanoes likely came from deeper in the mantle.
Lava from ocean ridges likely came from deeper in the mantle.
Lava from Hawaiian volcanoes likely came from melting the oceanic crust.
mantle-core density hypothesis
slab-pull, ridge-push model
layering at 660 kilometers
Identify each of the plate tectonics driving mechanism models by selecting the correct response.
For each item below, use the pull-down menu to select the letter that labels the correct part of the image.