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Science Exam Review

section 2

What theory explains the motions of earth's continents over time? Continental Drift
Who first developed the idea that continents were moving? Alfred Wegner
List the Earth's internal layers from inside to outside. Core, Mantle, Crust
what type of plate boundaries occur along the west coast of the United States when the Pacific plate grinds past the North American Plate? transform
what kind of boundary forms when ocean crust is pushed under continental crust during a subduction? subduction zone
identify the type of folded rock layer that bends downwards and has younger rock layers in the core (center). syncline
During a reverse fault, the hanging wall moves up relative to the foot wall. What type of stress causes this? compaction
what type of seismic waves are the fastest moving? Primary (p) waves
P-waves, S-waves, and L-waves are also known as what? seismic waves
What may an undersea earthquake cause? tsunami
What is the rating system that is used to measure energy released during an earthquake called? Magnitude
what is the place inside the earth where the energy of an earthquake is centered called? Focus
what instrument is used to record and measure earthquakes? seismograph
what is the location on the earth's surface directly above the place where an earthquake occurs called? epicenter
The forcefulness of an eruption of a volcano is mostly dependant on what? silica content
which type of volcano is a steep sided mountain composed of alternating layers of lava and tephra? composite
which type of volcano sometimes erupts violently, forming a layer of tephra and sometimes erupts quieter forming a layer of lava? composite
which volcano is a small steep sided cone formed from tephra, usually short- lived cindercone
Created by: student_trent