rock classification
what are the 3 types of rocks
sedimentary metamorphic igneous sedimentary
which of these is an igneous rock: basalt, sandstone, shale, or marble
basalt
what do you call molten rock between the earths surface
magma
ta single rock specimen can never change from one rock type to another
false
this outermost solid layer of earth is broken into tectonic plates
crust
what type of rock forms when a certain molten rock cools and solidifys
igneous
name a common example of a sedimentary rock
sandstone, shale, limestone, conglomerate
what is molten rock called once it reaches the earths surface
lava
igneous rocks form from melted rock that has cooled
true
theese giant slabs of earth crust move slowly due to convection currents in the mantle
techtonic plates
what type of rock is formed by sediments being compacted and fermented over time?
sedimentary
name a common metamorphic rock
slate, schist, Genesis, marble,quartsite
which process turns sediment into sedimentary rock
compaction and cementation
metamorphic rocks form when rocks melt completely underground
false
this type of boundary occurs when two plates move toward each other often forming mountains
convergent boundary
what type of rock forms when existing rocks is altered by great heat and or pressure.
metamorphic
this glassy, black when lava cools extremely quick
obsidion
how can igneous or sedimentary rock become metamorphic rock
through heat and pressure
sedimentary rocks often form in layers
true
earthquakes most commonly occur along theese cracks in earths crust
faults
this process must occur in order for igneous rocks to form metamorphic rocks
heat and pressure
this sedimentary rock forms from compacted sand grains and often appears tan or reddish
sandstone
igneous rocks form when this molten material cools and solidifies
magma
all metamorphic rocks were once sedimentary
false
this hot semi solid layer beneath the crust circulates and drives plate moovment
mantle