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Layers of Earth

NAME _________________________________
Across
The process in which a denser plate is pushed downward beneath a less dense plate when plates converge; occurs at continental to oceanic boundaries and oceanic to oceanic boundaries.
A tectonic plate division of the lithosphere that includes the continental crust of South America and the oceanic crust extending to the Mid-Atlantic ridge.
A measure of the amount of heat energy.
The place where two different plates have contact.
A boundry that occurs when two tectonic plates move away from each other.
Crust can be either oceanic, which is thin and dense, or continental, which is thick and less dense.
The solid layer of Earth between the crust and the core; made of dense silicates and where convection takes place.
Measureable characteristics that describe the physical state of something, including mass, magnetism, temperature, density, shape, volume, and conductivity.
A tectonic plate division of the lithosphere that includes the continental crust of Africa and the surrounding oceanic crust.
A boundry that occurs when two tectonic plates slide past each other.
Force exerted on matter through contact with other matter; affects melting and boiling points.
Major geological event that occurs when plates shift suddenly and release stored energy; frequent occurrences along all types of plate boundaries.
Down
A characteristic of the material in the asthenosphere; existing in a solid state yet having the ability to flow without a liquid;
The sphere of solid nickel and iron a the center of the Earth; surrounded by the liquid outer core.
A type of eruption event in which molten rock spews out from the mantle to the surface of Earth as ash, lava, and gases; major geological events that occur when a dense plate subducts below a less dense plate.
Huge pieces of lithosphere that slowly move on the asthenosphere and consist of the crust and the rigid, uppermost part of the mantle.
A tectonic plate division of the lithosphere that includes the continental crust of Greenland, North America, Siberia and the surrounding oceanic crust.
Ridges formed from new crustal material at diverging oceanic plate boundaries.
The types, quantities, and arrangements of elements that make up a substance.
The solid layer with plasticity in the upper mantle that is located just below lithosphere plates "float" and move on this layer.
The division of composition of Earth determined by either chemical composition or by the physical state of matter.
The cool, rigid, outermost layer of Earth that consists of the crust and the uppermost part of the mantle; broken into pieces or segments called plates.
The thin, solid outermost layer of Earth; made of less dense silicates and is either continental (landmasses) or oceanic (ocean floors.)
The amount of matter in a given space or volume; it is a relationship between mass and volume. Less dense matter will for layers above dense matter.