Download Chapter 5 Rocks

5.1 Classifying 5.2 Igneous 5.3 Sedimentary 5.4 Rocks 5.4 Metamorphi
Rocks
Rocks
Rocks
Form Reefs
Rocks
p. 144-147
p. 148-151 p. 152 - 156
p. 157-159 p.160 -162
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When all the grains in a rock are large and easy to see, the
rock is described as
coarse grained.
Rock that forms from the cooling of magma below the surface or
lava at the surface is called
igneous rock.
Where does most metamorphic rock form?
deep underground
To describe a rock’s texture, geologists determine
the_____, shape, and pattern of the rock’s grains.
size
Generally, a rock is made up of a ______of minerals and other
materials.
mixture
Particles of minerals called ____give a rock its
texture.
grains
Igneous rock that cools very quickly when it forms may have a texture
that is
smooth and shiny with no visible grain.
Igneous rock that formed from lava that erupted onto Earth’s surface is
called ____.
extrusive rock.
The most abundant intrusive rock in the continental crust is
granite.
Igneous rocks that formed beneath Earth’s surface are ____
rocks.
intrusive
The process by which sediment
settles out of the water or wind
carrying it is_________________.
deposition.
A sedimentary rock made up of rock
fragments with rounded edges is
called _________.
conglomerate.
The sedimentary rock formed when
water deposits tiny particles of clay
in very thin, flat layers is called ____.
Shale
Chalk formed from sediments made
of skeletons of microscopic living
things in the ocean must be a(n)____.
Organic sedimentary rock.
The sedimentary rock breccia is
made up of rock fragments with _____
edges?
.
sharp
What forms the structure called a
coral reef?
skeletons of coral animals
In volcanic areas, groundwater
heated by magma is a source of ____
geothermal energy.
Tall, cone-shaped mountains in
which layers of lava alternate with
layers of ash are called _____
composite volcanoes.
What happens to a coral reef if the sea level rises or if the sea floor
sinks?
It continues to grow upward.
Over time, coral buried by sediments can turn into _______ (a
sedimentary rock).
Limestone
Heat and pressure deep beneath
Earth’s surface can change any rock
into ________.
metamorphic rock.
The heat that changes a rock into metamorphic rock comes from
___.
the mantle.
Geologists classify metamorphic rock
according to the arrangement of the
____ that make up the rock.
grains
The texture of a metamorphic rock
that has grains arranged in parallel
layers is described as_______.
foliated.
Metamorphic rocks that are
nonfoliated _____________.
do not split into layers.