APES Week 15 Vocabulary Flashcards

5710158192	Core	In reference to Earth, the innermost layer.	0
5710158193	Mantle	The layer of Earth above the core, containing magma.	1
5710158194	Magma	Molten rock.	2
5710158195	Asthenosphere	The layer of Earth located in the outer part of the mantle, composed of semi-molten rock.	3
5710158196	Lithosphere	The outermost layer of Earth, including the mantle and crust.	4
5710158197	Crust	In geology, the chemically distinct outermost layer of the lithosphere.	5
5710158198	Hot spots	In geology, a place where molten material from Earth's mantle reaches the lithosphere.	6
5710158199	Plate tectonics	The theory that the lithosphere of Earth is divided into plates, most of which are in constant motion.	7
5710158200	Tectonic cycle	The cycle of processes that build up and break down the lithosphere.	8
5710158201	Subduction	The process of one crustal plate passing under another.	9
5710158202	Volcano	A vent in the surface of Earth that emits ash, gases, or molten lava.	10
5710158203	Divergent boundary	An area beneath the ocean where tectonic plates move away from each other.	11
5710158204	Convergent boundary	An area where plates move toward one another and collide.	12
5710158205	Transform boundary	An area where tectonic plates move sideways past each other.	13
5710158206	Fault	A fracture in rock caused by a movement of Earth's crust.	14
5710158207	Seismic activity	The frequency and intensity of earthquakes experienced over time.	15
5710158208	Fault zone	A large expanse of rock where a fault has occurred.	16
5710158209	Earthquake	The sudden movement of Earth's crust caused by a release of potential energy along a geologic fault and usually causing a vibration or trembling at Earth's surface.	17
5710158210	Epicenter	The exact point on the surface of Earth directly above the location where rock ruptures during an earthquake.	18
5710158211	Richter scale	A scale that measures the largest ground movement that occurs during an earthquake.	19
5710158212	Igneous rock	Rock formed directly from magma.	20
5710158213	Intrusive igneous rock	Rock that forms when magma rises up and cools in a place underground.	21
5710158214	Extrusive igneous rock	Rock that forms when magma cools above the surface of the earth.	22
5710158215	Fracture	In geology, a crack that occurs in rock as it cools.	23
5710158216	Sedimentary rock	Rock that forms when sediments such as muds, sands, or gravels are compressed by overlying sediments.	24
5710158217	Metamorphic rock	Rock that forms when sedimentary rock, igneous rock, or other metamorphic rock is subjected to high temperature and pressure.	25