Rocks & Earth 1
melted rock beneath the Earth's surface
magma
rocks formed from sediments that have been compacted and cemented together
sedimentary rocks
the squeezing of air and water out of sediments and the pressing of the fragments together
compaction
the process of change in the structure and constitution of a rock
metamorphism
igneous rocks formed when magma cools beneath the Earth's surface
intrusive rocks
rocks formed from cooled and hardened magma or lava
a rock structure with visible layers or bands aligned in planes
foliated structure
igneous rocks formed when lava cools on Earth's surface
extrusive rocks
the boundary between the mantle and the crust
moho
the central portion of the Earth
core
the fastest seismic waves, which travel through solids, liquids, and gases
p waves
the crust on which the continents rest
continental crust
the outermost, rigid layer of the Earth composed of the stiff upper mantle and the crust
lithosphere
s waves
the layer of upper mantle composed of low-density rock material that is semi-plastic
asthenosphere
the thin, hard outer layer of the Earth
crust
how are igneous rocks classified
mineral content and structure
hardened magma or lava
how are sedimentary rocks formed
compacted and cemented sediments
how are metamorphic rocks formed
extreme pressure, heat, or chemical processes
what is the transition zone?
layer between upper and lower mantle
draw a diagram of the Earth and correctly label each layer
amv
how do scientists know about the core
s and p waves
how hot is the core of the Earth
like the sun
describe the rock cycle
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