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Dynamic Earth Vocab
Unit 1 Vocabulary
17
Geology
Beginner
01/07/2019

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Term
Weathering
Definition
process by which rock materials are broken down by the action of physical and chemical processes
Term
Erosion
Definition
smaller dissolving and removing some chemicals within the rock. Fragments of weathered rock
Term
Deposition
Definition
the process by which wind, water, ice, or gravity transports soil and sediment from one location to another
Term
Sediment
Definition
fragments of organic or inorganic material that are transported and deposited by wind, water, or ice and that accumulate in layers on Earth's surface
Term
Sediment
Definition
fragments of organic or inorganic material that are transported and deposited by wind, water, or ice and that accumulate in layers on Earth's surface
Term
Mineral
Definition
a naturally-occurring and usually inorganic solid. It has a definite chemical composition and an orderly internal structure
Term
Igneous rock
Definition
Cooling magma below ground and cooling lava above ground
Term
Sedimentary rock
Definition
When sediments are compacted or are cemented together by new minerals
Term
Metamorphic rock
Definition
When large changes of temperature, pressure, or both cause the texture and mineral content of existing rock to change
Term
Tectonic plate
Definition
a block of lithosphere that consists of the crust and the rigid, outermost part of the mantle
Term
Plate tectonics
Definition
the theory that explains how large pieces of Earth's outermost layer, called tectonic plates, move and change shape
Term
Convection current
Definition
any movement of matter that results from differences in density; may be vertical, circular, or cyclical
Term
Earth System
Definition
All the matter,energy,and process within the boundary
Term
Atmosphere
Definition
the part of the Earth system that includes all of the gases in a layer that surrounds Earth. About 78% of the atmosphere is nitrogen and 21% of the atmosphere is oxygen. The last 1% is other gases.
Term
Geosphere
Definition
the part of the Earth system that includes all of the rocks, minerals, and landforms on Earth’s surface and all the matter in Earth’s interior
Term
Hydrosphere
Definition
the part of the Earth system that includes all Earth’s water, whether it is on the surface, underground, or in the atmosphere. The hydrosphere includes liquid water, water vapor, and the solid water in ice.
Term
Biosphere
Definition
the part of the Earth system that includes all living organisms, from the smallest bacterium to the largest tree
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