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Science Final - 6th grade
Terms in this set (58)
The study of earthquakes
a place where the Earth's crust is broken
when rock is put under pressure and changes shape
when rock is put under pressure and changes shape permanently
when rock is put under pressure and changes shape, but returns to original size and shape when the pressure goes away.
the snap back to original shape after a rock breaks under pressure.
the slow movement of Earth's tectonic plates relative to one another over time.
where 2 tectonic plates are moving away from each other.
where 2 tectonic plates are moving toward each other.
where 2 tectonic plates are sliding past each other.
a wave of energy generated by an earthquake
a wave of energy that travels through the inside of the Earth
seismic waves that travels through the top part of the Earth's crust
a device that records movement of the Earth; records vibrations caused by seismic waves.
the scale used to measure and describe the magnitude (strength) of an earthquake
place on Earth's surface directly above an earthquake's focus
the place inside the Earth where rocks break first; where an earthquake starts.
A vent in Earth's crust through which molten rock flows
volcano that is not associated with a plate boundary
rising currents of hot mantle material; associated with creating hot spots
a large volcano with gentle sloped sides; made of basaltic lava; commonly occur along divergent plate boundaries.
large, steel-sided volcano resulting from explosive eruptions of andesitic and rhyolitic lava; occur along convergent plate boundaries.
A small, steep-sided volcano that erupts gas-rich, basaltic lava
tiny particles of pulverized volcanic rock and glass; often results from an explosive eruptions.
A liquid's resistance to flow
a fast-moving current of hot gas, ash and rock produced by explosive volcano.
a naturally occurring, inorganic solid, with a definite chemical composition, and an
orderly arrangement of atoms.
a natural, solid mixture of minerals or grains.
the grain size and the way grains fit together in a rock
the fragments that make up a rock
the type of minerals (or grains) that are present in a rock and their relative
abundance in the rock
rock formed when magma or lava cools and crystallizes
: rock formed by the deposition, compaction, and cementation of sediment
rock formed from preexisting rocks that have undergone changes as a result of
temperature and pressure
rock material that forms where rocks are broken down into smaller pieces or dissolved
in water as rocks erode
the processes that change Earth's surface over time
the moving of eroded material, or sediment, from one location to another
the laying down or settling of eroded material
: the process in which the weight from layers of sediment forces out fluids and
decreases the space between sediment grain
the process in which minerals dissolved in water crystallize between sediment grains
igneous rocks that form as magma cools and crystallizes underground
igneous rock that form when volcanic material erupts and cools and crystallizes on
rock that forms when lava cools too quickly to form crystallize
a sedimentary rock that is made up of broken pieces of minerals and rock fragments
broken pieces or fragments of rocks and minerals
sedimentary rock that forms when minerals crystallize directly from water
a sedimentary rock that was formed by organisms or contains the remains of organisms
the principle that in rock layers, the oldest rocks are on the bottom
any process that affects the structure or composition of a rock in a solid state as a result of changes in temperature, pressure, or the addition of chemical fluids
permanent change in shape by bending or folding
metamorphic rock that contains parallel layers of flat and elongated materials
metamorphic rocks that have mineral grains with a random, interlocking texture
when magma comes in contact with existing rock, and its thermal energy
and gases interact with the surrounding rock, forming new metamorphic rock
the formation of metamorphic rock bodies that are hundreds of square kilometers in size
theory that Earth's lithosphere is broken into rigid pieces that move with respect
to each other
the boundary between two plates that move away from each other
the boundary between two plates that move toward each other
the boundary between two plates that slide past each other
THIS SET IS OFTEN IN FOLDERS WITH...
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