vocabulary
magma that flows out onto Earth's surface
lava
formed by crystallization of magma
igneous rocks
molten rock inside of earths crust is called
magma
igneous rocks are strong because of what characteristic?
interlocking grain texture
naturally occuring, inorganic solid, with a special chemical composition and a definite chemical structure
mineral
rocks formed from the crystallization of magma
igneous rock
igneous rocks that cool slowly beneath Earth’s surface
intrusive rock
magma that flows out onto Earth's surface is
lava
in addition to differences in their mineral composition, igneous rocks differ in the sizes of their ______________
(two answers, if you get both you get double points)
grains or crystals
what are the charges to the following subatomic particles
protons
neutrons
electrons
+
neutral
-
characterized by large, well-formed crystals surrounded by finer-grained crystals of the same mineral or different minerals
poryphyritic texture
igneous rocks that cool quickly on Earth’s surface
extrusive rock
true or false- the elements found in magma are quite different from those found in earth's crust
false
Obsidians glassy texture is a result of _________ cooling
rapid
What does the acronym GPS stand for?
global positioning system
a sequential process during which early formed crystals are
removed from the melt and do not react with the remaining
magma
fractional crystallization
light-colored rock high in silica that ocntains iron and magnesium rich minerals
granitic rock
magma is often a slushy mix of moleten rock, gases, and ___________ ____________
(2 words)
mineral crystals
this type of texture is characterized by large, well-formed crystals surrounded by finer-grained crystals of the same mineral or different minerals
poryphyritic
What is the scale used to measure how easily a mineral can be scratched?
Mohs Hardness Scale
a model that descibres the relationship between cooling and magma and mineral formation
bowens reaction series
dark-colored low in silica that contains iron and magneisum-rich mienrals
basaltic rock
How does temperature change with depth in Earths crust?
How does pressure change with depth, and why?
Temperature increases with depth.
Pressure increases with depth.
this texture is characterized by a sponge-like feel and look
example- pumice and vesicular basalt
vesiular
What are the three types of rock?
sedimentary
igneous
metamorphic