earths features with review

7/24/2019 Earths Features With Review

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Constructive ProcessConstructive Process

Essential QuestionsEssential Questions

What are surface features?

What are examples of constructive

process? How can a surface feature be changed by

a constructive process?

What are surfaces features caused byconstructive processes?


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eposition !

! a process of dropping sediment" dirt" roc#s"

or particles in on place$


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Constructive ProcessConstructive ProcessExamples of DepositionExamples of Deposition

ConstructiveProcess

Force Surface FeatureCreated

Deposition

water / river Deltas

water / river Floodplains

water / ocean Beaches andBarrier Islands

wind Sand dunesIce / glacier Moraines


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ther Constructive Processesther Constructive Processes

ConstructiveProcess

Force SurfaceFeature

Folding platemovements

mountains

Faulting platemovements

Mountains

Earth!ua"e plate

movements

cliffs #fault

scarp$

%olcanic&ctivit'

platemovements

mountains /islands


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Constructive Process (essonConstructive Process (esson

)eview)eview

%$ eposition is a process that

&$ issolves sediment

'$ 'rea#s down roc# to form sediment

C$ (emoves sediment from landforms

$ rops sediment to form landforms


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(esson )eview(esson )eview

)$ Where do deltas form?

&$ *n desert areas

'$ &t river mouths

C$ +n the ban#s of rivers

$ *n valleys formed by glaciers


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,$ -ong shore currents in the ocean help

create

&$ 'eaches

'$ unes

C$ (ivers

$ rumlins


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.$ /olcanoes can create new land when

they release

&$ -ava

'$ Water

C$ 0aults

$ mud


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1$ What forms moraines?

&$ Wind

'$ (ivers

C$ 2laciers

$ /olcanoes


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What are surface features?

! 3urface features are landforms and bodies of

water that cover the Earth4s surface such as5

6ountains" valleys" canyons" gorges" beaches"

sand dunes" barrier *slands" flood7plains"

moraines" and drumlins" volcanoes" oceans" la#es"

and rivers


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What are examples of constructive

process?

! eposition

! /olcanic &ctivity

! Earth8ua#e &ctivity

! 0aulting

! 0olding


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How can a surface feature be changed by

a constructive process?

! 'y forces such as wind" water" ice" through

the process of deposition$

! 9he movement of the Earth4s crust

Plate 9ectonics :movements;


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*hat are surface

features formed

from constructive

processes+ Delta

Floodplains

Barrier island

Sand dune

Moraine

Drumlin

Islands

Mountain )anges

Cliffs , Fault Scarps


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estructive Processestructive Process


What are examples of destructive

processes?

How are surface features changed bydestructive processes?

What are examples of surface features

caused by destructive processes?


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estructive Processesestructive Processes

*eathering, -he .rea"ing down of roc"! Mechanical / Physical

Freeing and thawing of )oc"

*ater freeing and expanding in crac"s of roc"

Impact of organisms! Plant roots growing

! &nimals .urrowing

! Chemical

xidation / rusting

Car.onic &cid / acid rain! Caverns

Impact of organisms

! &cid from (ichen


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Destructive ProcessDestructive Process

Erosion ,Movement of roc" from one place to another! *ater / )ivers

Can'ons 0orges % shaped %alle's

!*ater / cean *aves Sea arches

Sea stac"s

! *ind Buttes Desert pavements

! Ice / 0laciers 1 shape %alle's

! 0ravit' Mast *asting


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Destructive ProcessDestructive Process

%olcanic &ctivit'

! Movement of Earths Crust #Plate tectonics$

)eshaping of Mountains

Earth!ua"es

! Movement of Earths Crust #Plate tectonics$

-renches

! crac"s in the Earth Curst


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%$ What is weathering?

&$ & type of climate

'$ 9he transport of sedimentC$ 9he brea#down of roc#

$ 9he aging of roc#


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)$ Which of theses is caused by

chemical weathering?

&$ desert pavement'$ formation of


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,$ How do earth8ua#es change the

land?

&$ 9hey transport sediment$'$ 9hey form crac#s in the surface$

C$ 9hey release ash and lava$

$ 9hey cause chemical weathering$


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.$ & river can form

&$ 3ea arches$

'$


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*hat are examples of destructive

processes+

! *eathering

Mechanical / Ph'sical

Chemical

! Erosion

! %olcanic &ctivit'! Earth!ua"e &cuit'


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2ow are surface features changed .'destructive processes+! Freeing and thawing of the earth3s crust! Freeing water in crac"s of roc"

! xidation / rusting! Car.onic acid / acid rain! Impact of organisms! *ater / rivers and oceans

! Ice / glaciers! *ind! 0ravit'! Movement of earth3s plates / plate tectonics


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*hat are examples of surface features caused.' destructive processes+! Caverns / Carbonic Acid

! %4shaped valle's / River water

! Can'on / gorges / River water

! Sea arches / Ocean Waves

! Sea stac"s / Ocean Waves

! Buttes / Wind

! Desert pavements / Wind

! )eshaped mountains / Volcanoes

! -renches / Earthquakes


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Controlling Constructive andControlling Constructive and

Destructive Processes E5Destructive Processes E5

How can constructive and destructive

processes be controlled through the use

of technology?

How does technology affect constructive

and destructive processes?

What are examples of technology used to

control constructive and destructive

processes?


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Effects on ConstructiveEffects on Constructive

ProcessesProcesses

Dam! a structure built across a river to

control its flow

! Positive Eect

0lood Control

Hydroelectric Power

! !e"ative Eect

Holds bac# sediment! Prevents deposition of flood plains" deltas" and beaches


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Effects on Destructive ProcessesEffects on Destructive Processes

Prevention of .each erosion! 0roin! a structure .uilt perpendicular to the .each$

Positive Effect! -raps sand that moves along the shore and causing the .each to

.uild up6

7egative Effect! Beach Erosion down stream is worse6

! Seawall! a structure .uilt parallel to the shore Positive Eect

! Protects land .ehind if from ocean the ocean waves

!e"ative Eect! cean side .each will erode

! Beach 7ourishment! sand from ocean or nearby rivers arepumped onto the beach


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Prevention of .each erosion #cont$! Seawall! a structure .uilt parallel to the

shore

Positive Eect!Protects land .ehind if from oceanthe ocean waves

!e"ative Eect

!cean side .each will erode! Beach 7ourishment! sand from ocean or

nearby rivers are pumped onto the beach


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Prevention of soil erosion! Contour Plowing, method in which farmers plow across

the sided of hill instead of down

! -erracing, the planting of corps on terraces #steps$ .uilt

into steep hillsides6! *ind.rea"s, rows of plants or fences6

Slow down wind and limit the distance it can carr' soil6

! %egetation, used to hold soil in place

! Storm drain management , a s'stem of drains

Prevents flooding and soil erosion


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Effects of %olcanoes andEffects of %olcanoes and

Earth!ua"esEarth!ua"es

%olcanoesand Earth!ua"escan not .e

controlled8

! 2owever scientist have wa's to determine when

and where these the' might occur6 %olcanoes ,

! instruments are used to detect changes in volcanoes

Earth!ua"es ,

! Detailed maps show ma9or faults

! Safet' Education

! 7o new .uildings on or near faults

! Building codes to resists earth!ua"es

! Seismographs , measures earth!ua"es on a rector scale


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:6 *hat is the purpose of a groin+

&6 to strengthen dams

B6 to stop .each erosionC6 to create new sediment on

shorelines

D6 to .rea" down headlands


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;6 Beaches that have eroded are

reclaimed through

&6 weathering6B6 .uilding of seawalls6

C6 .each nourishment6

D6 .uilding of terraces6


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=6 Scientist "now where

earth!ua"es will occur .ecause

the' "now the locations of&6 faults

B6 volcanoes

C6 mountains

D6 long4shore currents6


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>6 *hich of these do scientists useto predict when a volcano is li"el'to erupt+

&6 the age of the volcano

B6 earth!ua"es .eneath the volcano

C6 temperature of near.' rivers

D6 the hardness of roc" near thevolcano


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Destructive Processes E5Destructive Processes E5 2ow can constructive and destructive processes .e controlled

through the use of technolog'+ Flooding

! Dams Beach Erosion

! 0roins! Seawalls! Beach nourishment

Soil Erosion! Contour plowing

! -erracing! *ind .rea"s! Planting of vegetation! Storm drain management s'stems


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Destructive Processes E5Destructive Processes E5 2ow does technolog' effect constructive and destructive

processes+! Dams,

Positive Eect! Flood Control! 2'droelectric Power

!e"ative Eect! Prevents deposition of flood plains? deltas? and .eaches

! 0roins! Positive Effect

! -raps sand that moves along the shore causing the .each to .uild up6

7egative Effect! Beach Erosion down stream is worse6

! Seawalls! Positive Eect

! Protects land .ehind from ocean waves

!e"ative Eect! cean side .each will erode


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Destructive Processes E5Destructive Processes E5

*hat are examples of technolog' used tocontrol constructive and destructiveprocesses+! Dams

! 0roins

! Seawalls

! *ind Brea"s

! Contour plowing techni!ue

! -erracing techni!ue

! Storm Drainage S'stems

! Beach 7ourishment


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1nit )eview1nit )eview

:6 *hat landform forms from

deposition at the mouths of

rivers+&6 a delta

B6 a floodplain

C6 a sand duneD6 a moraine


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;6 Deposition forms these features

on coasts6

&6 drumlinsB6 floodplains

C6 .arrier islands

D6 14shaped valle's


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=6 & dam across a river can cause

&6 the formation of a delta6

B6 the carving of a valle'6C6 the erosion of a .each6

D6 the formation of a sea stac"6


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>6 *hich of these helps prevent the

harmful effects of erosion+

&6 damsB6 volcanoes

C6 (ong4shore currents

D6 contour plowing


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@6 In which t'pe of climate are 'ou

most li"el' to find a sand dune tht

is not on the coast+&6 dr'

B6 humid

C6 ic'D6 hot


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A6 *hat is the purpose of a groin+

&6 to prevent chemical erosion of roc"

B6 to release trapped sediment from.ehind dams

C6 to help predict volcanic activit'

D6 to stop erosion of .eaches


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6 *hat does erosion do+

&6 .rea"s down roc" ph'sicall'

B6 moves .ro"en pieces of roc"C6 changes roc" chemicall'

D6 change sediment into roc"

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