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Earth's Systems

TermDefinition
Transform Boundary Plates slide past each other
Convergent boundary Plates collide
Divergent boundary Plates move apart
Crust The outer most layer of the Earth
Mantle Below the crust and made of magma
Outer Core Liquid part of the core
Inner Core Solid part of the core
Crust with water Oceanic Crust
Crust with land Continental Crust
Hydrosphere all the water on Earth
Lithosphere all the land on earth
Tectonic Plates large pieces of the Earth's crust that are constantly moving around
convection currents the force that pushes tectonic plates around (found in the mantle)
igneous rock Rocks formed when magma lava cools and hardens
metamorphic rock rocks formed when other rocks change under heat and pressure
sedimentary rock rocks formed when sediments are compacted and cemented together
Sediments small particles of rocks, shells, sand, dirt, etc.
Magma liquid rock (lava inside the Earth)
Law of horizontality sedimentary rocks are formed in perfect, complete, horizontal layers
Law of superposition rock layers on the bottom are the oldest, on the top are the newest
Cross-cutting rule any feature that cuts through another must be younger than what it cuts through.
unconformity When one or more of the three rules of rock layers are broken (examples: bending/folding, weathering/erosion, fault line)
weathering breaking up or weakening of rocks
erosion movement of rocks/sediments
deposition when sediments stop moving and settle in a new location
rotation spinning of Earth on its axis
revolution The Earth traveling all the way around the sun
direct sunlight occurs when a hemisphere is tilted towards the sun, causes summer
indirect sunlight occurs when a hemisphere is tilted away from the sun, winter occurs
Latitude Imaginary horizontal lines on Earth.
Longitude Imaginary vertical lines on Earth.
Created by: user-2018914
 

 



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