Volcano
What is a volcano?
An opening in the earth's crust through which lava, volcanic ash, and gases escape.
What is the focus of an earthquake?
The point inside the Earth where an earthquake begins
What is a convergent boundary?
The boundary between two colliding plates, often associated with mountain building, ocean trenches and volcanic islands
What is our main source of energy?
The sun
What is the rock cycle?
A sequence of events in which rocks are formed, destroyed, altered, and reformed by geological processes (a process where one rock type changes into another).
Volcanoes are not very common at which boundary?
Transform
What is the epicenter of an earthquake?
The point on the earth's surface that corresponds to the location in the earth where an earthquake begins
What is a divergent boundary?
Where two plates are moving apart, magma comes up to create new crust.
What is kinetic energy?
The energy an object has due to it's motion
What is Mohs hardness scale?
A scale ranking ten minerals from softest to hardest; used in testing the hardness of minerals
What is the hole at the top of the volcano?
A vent
What is the magnitude of an earthquake?
The measurement of an Earthquake's strength based on seismic waves and movement along faults
What is a subduction zone?
The region where an oceanic plate sinks down into the asthenosphere at a convergent boundary, between continental and oceanic plates.
What is potential energy?
Energy stored in an object because of it's position
What is the deposition of rocks and minerals?
A scale ranking ten minerals from softest to hardest; used in testing the hardness of minerals
What is the name for the path the magma uses to travel from the chamber to the vent?
Conduit
What is a seismograph?
An instrument that records earthquake waves
What are convection currents?
Circular currents in the mantle caused by the magma being heated by the core off the Earth.
What is radiant energy?
Energy carried by light
What is cementation?
The process by which dissolved minerals crystalize and glue particles of sediment together into one mass.
What are the 3 main types of volcanoes?
Cinder cone, Shield, and composite volcanoes
What is the subduction of an earthquake?
A process by which mountains can form ( oceanic plate dives beneath a continental plate)
What is the theory of Plate Tectonics?
The theory that the lithosphere is divided into tectonic plates that move around on top of the asthenosphere.
What is the equation for Energy?
Energy = Power x Time
What is compaction?
The process by which sediments are pressed together under their own weight