Plate Tectonics

What happened to Pangea over time?

Place where two plates come together

Upper, solid part of the mantle

Crumpled mountains caused by continents pushing up against each other

Type of heat transfer within objects that touch

Ancient organism preserved in rock, evidence proving Wegner's theory of continental drift

What landforms do spreading boundaries create?

Long system of mountains under the ocean

What are the layers and order in the Earth?

Occurs when earthquakes strike, indirect method of studying the Earth

Layer in the mantle, Material that can bend like plastic, part of its name means weak

Process where the ocean floor sinks under a deep-ocean trench and into the mantle

What evidence proves that the Earth's interior is made of layers?

Pieces of Earth's lithosphere that are in slow, constant motion

Layer of molten metal surrounding the inner core

Type of evidence to study Earth's interior that includes studying rock samples

Site where two boundaries slip past each other

The process by which heat is moved from warmer objects to cooler objects

A theory proposed by Wegner, stating that landmasses slowly drifted over time

A layer of rock that is made up of the lithosphere and the asthenosphere

What are rift valleys?

Site where two plates are moving apart

Where does subduction take place?

Flow in a liquid that transfer heat. Also present in the mantle and core

Used in direct evidence to find out conditions inside the Earth

Deep under-water canyons. Usually the site where subduction occurs

Dense ball of solid metal under extreme pressure

Material from inside the Earth that is liquid and sometimes erupts

Heat transfer by movement of fluids

Deep valley that forms along a spreading boundary

Heat transfer through space

What are the three types of heat transfer?

Person who came up with the theory of continental drift

The supercontinent all continents originated from

The layer of rock that is the Earth's outer skin