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Science Chapter 8
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Published on Dec 04, 2015
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1.
Science Chapter 8
By:Becky Goebel
Photo by
angela7dreams
2.
fold mountain
a mountain made up of mostly rock layers folded by being squeezed together
3.
fault-block mountain
a mountain made by huge tilted blocks of rocks separated by surrounding rocks by faults
Photo by
CircStock
4.
weathering
the breaking of rocks into smaller pieces by natural process
Photo by
GrungeTextures
5.
erosion
picking up and removing rock particles
Photo by
Al_HikesAZ
6.
soil
loose weathered rock that can grow plants
Photo by
Miguel Vera
7.
humus
material produced by breaking down plant and animal remains
Photo by
bill barber
8.
soil horizon
series of horizons in soil from the surface down to the bedrock
Photo by
Ron Schott
9.
groundwater
rainwater that soaks into spaces between rock fragments underground
Photo by
foto3116
10.
mass wasting
downhill movement of earth mater caused by gravity
Photo by
brewbooks
11.
deposition
the dropping off of sediment
Photo by
Blue Square Thing
12.
glacier
a huge sheet that moves slowly over the land
Photo by
peterp
13.
till
jumble of many sizes of sediment deposited by a glacier
Photo by
Thomas Fisher Rare Book Library
14.
moraine
a deposit many sizes of sediment in front or along the sides glacier
Photo by
cletch
15.
mineral
naturally occurring solid in earths crust
Photo by
Smabs Sputzer
16.
igneous rock
forms when hot liquid rock cools and hardens into a lot of rockes
Photo by
loonyowl
17.
sedimentary rock
forms from pices of other rocks that are pushed togeather
Photo by
Ron Schott
18.
metaophic rock
from anther kind of rock that is changed by heat
19.
rock cycle
rocks continually changing from one kind into another
20.
superposition
a mixture of small particles
21.
relative age
age of the rock compared to another
22.
geologic column
listing of earth's rock in layers from oldest to youngest
23.
fossil
imprints, trace of remains in earth's crust (living)
Photo by
Delkarm
24.
index fossil
like a fossil but was widespread, only lived for a short time
Photo by
Darkroom Daze
25.
half-life
half the mass of a radioactive element in it to brakes apart
26.
absolute age
age of a rock in years
27.
era
1 of the 4 long stretches of time in earth's history
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