Sedimentary Rock
sediment is squished together to make sedimentary rock in a process called______________
cementation
causes some minerals to glow under UV light
fluorescence
What 2 things have to increase in order for metamorphism to occur
temperature and pressure
T or F: Magma can form when pressure on rock DEACREASES
True
how did humans use rocks in the past
make tools
what are the 3 categories of sedimentary rock?
organic, clastic, chemical
When magma cools quickly, igneous rock has what kind of texture?
fine-granined
this kind of metamorphic rock has its grains arranged in planes or bands
foliated
name 2 out of 4 forces that shape earth's features
erosion, weathering, deposition, uplift
besides texture, how else are rocks classified
composition
process in which layers in sedimentary are formed
stratification
igneous rock formed when magma cools below the earth's surface
intrusive igneous rock
metamorphic rocks in which mineral grains are NOT arranged in bands
nonfoliated
process in which sediment is dropped and comes to rest
deposition
naturally occurring solid mixture of crystals of 1 or more mineral
rock
layers found in sedimentary rock
strata
rock that forms when magma cools at the earth's surface
extrusive igneous rock
when temperature and pressure change what can happen to the minerals in rocks?
they change into other minerals
process by which new rock is made from old rock
rock cycle
quality (characteristic) of a rock based on size, shape and position of the rocks grains
texture
name of the little rock but that make up sedimentary rock
sediment
during the rock cycle, what rock type forms when magma cools?
igneous rock
the process by which rocks change their shape
deformation
process by which sediment is removed from its source
erosion
chemical makeup of a rock
composition