What is the Earth's crust?
The outermost shell of a terrestrial planet.
What is the Asthenosphere?
The upper layer of the Earth's mantle, below the lithosphere.
What is a Convection Current?
A current in a fluid that causes a current.
What is a Transform Boundary?
A type of tectonic plate boundary where two lithospheric plates slide horizontally past each other.
What is Fracture?
A break or rupture in a material, often caused by stress.
What is the definition of the Earth's mantle?
A layer within the planetary body, specifically between the core and crust, composed of rock or ice.
What is Continental Drift?
The gradual movement of the continents across the Earth's surface through geological time.
What is the definition of Divergent Boundaries?
A location where two tectonic plates are moving away from each other.
What is the definition of mineral?
A naturally occurring inorganic element or compound.
what is the definition of Density?
A measurement of how much mass is packed into a given volume of a substance or object.
What is the Outer core?
A liquid layer of the Earth's core, situated between the solid inner core and the mantle.
A supercontinent that existed during the late Paleozoic and early Mesozoic eras approximately 335 to 200 million years ago is known as what?
Pangea.
What is Sea Floor Spreading?
The formation of new areas of oceanic crust, which occurs through the upwelling of magma at midocean ridges and the subsequent outward movement on either side.
Describe Luster.
A physical property used by mineralogist to help identify minerals.
What is the Rock Cycle.
A natural process that describes how rocks are formed, broken down and reformed overtime.
What is the Inner core?
The innermost solid sphere of Earth, composed primarily of an iron- nickel alloy.
What are Plate Tectonics?
The lithosphere of Earth is divided into a small number of moving plates whose movements cause seismic activity (as earthquakes).
Name the scientific definition:
A location on Earth's where two or more lithospheric plates move towards each other and collide.
Convergent Boundaries.
What is streak?
A color of a mineral in its powered form.
What is a Sedimentary Rock?
Formed from layer or sediment that have compressed and cemented together overtime.
What is the Earth's rigid, rocky, outer layer?
The Lithosphere.
What are Crustal Plates?
A large rigid section of Earth's lithosphere that moves as a unit.
Describe Subduction.
The process that occurs when two tectonic plates meet a convergent boundary and one of the plates move under the other due to gravity and different densities.
What is the definition of hardness?
A measurement of a mineral's resistance to localized plastic deformation, typically caused by indentation or scratching.
What is Compaction?
The process where sediments volume decreases due to pressure from overlying layers, leading to a reduction in porosity.