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MDTMS Sci. Completio

DESCRIBES THE COMPLETION FILL IN THE BLANKS FOR THE SCIENCE MDTM

QuestionAnswer
rift valley continental plates pulling apart
convection currents movement of fluid or gas caused by temp diffs. wlo heat. it stops.
geologists study the geological history of earth and its life forms
conduction transfer of heat through direct contact.
continental drift idea posed by alfred wegner that approx 300 mya there was a large mass of continents ( or "supercontinent") which were all the continents together. slowly have moved across surface since then.
fossils the fossils of the glossopteris fern were found all over the world.
radiation transfer of heat through empty space
transform break in earth's crust where slabs of rock slide past each other
deep-ocean trench underwater canyon where crust sinks back into mantle
subduction process in which the ocean floor sinks back into the mantle.
pangaea supercontinent that existed 300 mya
s waves secondary waves; moves in a SHEAR motion
focus point of initial rupture
ring of fire chain of volcanoes all around the world
island arc forms when 2 oceanic plates collide
streak color of a mineral's powder
luster how a mineral reflects in light
compaction rock solidifies when it compacts
heat metamorphic rocks change when they are under a certain amount of heat
erosion movement of rock by wind, water, ice, and gravity
loam soil made from clay, sand, and plants
dust bowl plowing xposed soil, wind blew the soil and caused a duststorm
climate hot/wet climates make rocks weather faster.
fossils petrified remains or traces of living things
gap in geological record unconformity
Created by: seastar12081
Popular Earth Science sets

 



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