Who proposed the idea of plate tectonics?
Henry Hess
What type of plate boundary collides with the other to create mountains?
Convergent
Who proposed the theory of continental drift?
Alfred Wegener
What type of plate boundary slides past the other to create fault lines?
Transform
What type of plate boundary pulls away from the other to form rift valleys?
Divergent
What islands were formed over a hotspot?
Hawaiian Islands
Magma that has reached the surface
Lava
Hot, molten rock from deep within the earth
Magma
When two plates collide and the more dense one sinks under the earths surface
Subduction
When magma oozes from mid ocean ridges, creating new crust that gradually moves away from the ridge and makes one ocean bigger and the other smaller
Seafloor spreading
Cool, rigid outermost layer of the earth. Consists of the upper most part of the mantle and the crust
Lithosphere
Solid layer with plasticity in the upper mantle just below the lithosphere
Asthenosphere
Heated, less dense air or liquid rises and cooler, more dense air or liquid sinks
Convection Current
Theory that continents were once one big land mass and over time they drifted apart
Continental Drift
Materialized remains of organisms that show how long an animal lived and the structure of their body
Fossil
Theory that the lithosphere is divided into tectonic plates that float around on the asthenosphere
Plate Tectonics
What mountain range formed from the collision of the India and Eurasia plate?
Himalayas
What mountain formed along the coast of South Africa as a result of plate subduction after a collision
Andes Mountains
What islands were formed from the collision of two oceanic plates?
Aleutian Islands
Area in the mantle from which magma rises from a narrow plume to form volcanic mountains
Hotspot

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