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ESPS Review

Ivan Ramirez, SFS A3

Crater A bowl-shaped area that is made around a volcano's central opening
Lithosphere A rigid layer of the earth composed of the uppermost part of the mantle and the crust.
Mantle A hot layer of solid material that is between Earth's crust and core.
Crust The layer on of the earth.
Asthenosphere A soft layer of the mantle on where the lithosphere floats.
Mesosphere The strong, lower part of the mantle between the asthenosphere and the outer core.
Core Center of the earth.
Ejecta Substance emitted by an active volcano
Law of Superposition The top rock layer and its fossils is the youngest, the bottom is the oldest.
Meteoroids Chunks of rock or dust from space.
Meteorites A piece of meteoroid that passed through the Earth's atmosphere and hit Earth's surface.
Comet A small and icy object that orbits a star.
Asteroid A small rock like object that orbits the sun.
Uniformism The act of the same manner as present and over a long period of time.
Relative Age The age of a rock compared to the ages of rock layers
Strata Layers of rock.
Absolute Age The true age of a rock of fossil.
Radiometric Dating The use of radioactive isotopes as a measure for determining the age of a rock or fossil
Carbon Dating A method that determines the age of an artifact
Geologic Time Scale Timeline used to represent Earth's history
Half Life The time it takes for half of the atoms of a radioactive element to decay
Isotope Different number of neutrons
Convergent Boundries A boundary between plates that are colliding.
Continental Crust A thick part of the earth that form large landmasses mostly older oceanic crust.
Transform boundaries When tectonic plates slide along beside each other.
Plate boundary Where two tectonic plates meet.
Slab pull The pulling of a tectonic plate as its edge subducts deep into the mantle
Created by: ramirezi1