Development of Development of River SystemsRiver Systems

Earth Science Earth Science

Grade 8Grade 8

River DevelopmentRiver DevelopmentHEAD OF THE RIVER HIGHLANDS

River DevelopmentRiver DevelopmentHEAD OF THE RIVER

MOUTH OF THE RIVER

HIGHLANDS

LOWLANDS

River DevelopmentRiver DevelopmentHEAD OF THE RIVER

MOUTH OF THE RIVER

HIGHLANDS

LOWLANDS

STREAM

River DevelopmentRiver DevelopmentHEAD OF THE RIVER

MOUTH OF THE RIVER

HIGHLANDS

LOWLANDS

STREAM

TRIBUTARY SYSTEM

River DevelopmentRiver DevelopmentHEAD OF THE RIVER

MOUTH OF THE RIVER

HIGHLANDS

LOWLANDS

STREAM

TRIBUTARY SYSTEM

MEANDER

River DevelopmentRiver DevelopmentHEAD OF THE RIVER

MOUTH OF THE RIVER

HIGHLANDS

LOWLANDS

STREAM

TRIBUTARY SYSTEM

MEANDER

YOUNG STAGE

MATURE STAGE

OLD STAGE

River DevelopmentRiver DevelopmentHEAD OF THE RIVER

MOUTH OF THE RIVER

HIGHLANDS

LOWLANDS

STREAM

TRIBUTARY SYSTEM

MEANDER

YOUNG STAGE

MATURE STAGE

OLD STAGE

WATERSHED

Watershed and DividesWatershed and Divides

Watersheds of PAWatersheds of PA

Mississippi WatershedMississippi Watershed

STAGES OF STAGES OF DEVELOPMENTDEVELOPMENT

YOUNG YOUNG STAGESTAGE Steep banksSteep banks

STAGES OF STAGES OF DEVELOPMENTDEVELOPMENT

MATURE MATURE STAGESTAGE Not as steep Not as steep

banksbanks

STAGES OF STAGES OF DEVELOPMENTDEVELOPMENT

OLD STAGEOLD STAGE Gently sloping Gently sloping

banksbanks

STAGES OF STAGES OF DEVELOPMENTDEVELOPMENT

YOUNG YOUNG STAGESTAGE Steep banksSteep banks No floodplainNo floodplain

STAGES OF STAGES OF DEVELOPMENTDEVELOPMENT

MATURE MATURE STAGESTAGE Not as steep Not as steep

banksbanks Small Small

floodplainfloodplain

STAGES OF STAGES OF DEVELOPMENTDEVELOPMENT

OLD STAGEOLD STAGE Gently sloping Gently sloping

banksbanks Large floodplainLarge floodplain

STAGES OF STAGES OF DEVELOPMENTDEVELOPMENT

YOUNG YOUNG STAGESTAGE Steep banksSteep banks No floodplainNo floodplain Straight pathStraight path

STAGES OF STAGES OF DEVELOPMENTDEVELOPMENT

MATURE MATURE STAGESTAGE Not as steep Not as steep

banksbanks Small Small

floodplainfloodplain Slight Slight

meandersmeanders

STAGES OF STAGES OF DEVELOPMENTDEVELOPMENT

OLD STAGEOLD STAGE Gently sloping Gently sloping

banksbanks Large floodplainLarge floodplain Large meandersLarge meanders

STAGES OF STAGES OF DEVELOPMENTDEVELOPMENT

YOUNG YOUNG STAGESTAGE Steep banksSteep banks No floodplainNo floodplain Straight pathStraight path Fastest flowFastest flow

STAGES OF STAGES OF DEVELOPMENTDEVELOPMENT

MATURE MATURE STAGESTAGE Not as steep Not as steep

banksbanks Small Small

floodplainfloodplain Slight Slight

meandersmeanders Moderate flowModerate flow

STAGES OF STAGES OF DEVELOPMENTDEVELOPMENT

OLD STAGEOLD STAGE Gently sloping Gently sloping

banksbanks Large floodplainLarge floodplain Large meandersLarge meanders Slowest flowSlowest flow

STAGES OF STAGES OF DEVELOPMENTDEVELOPMENT

YOUNG YOUNG STAGESTAGE Steep banksSteep banks No floodplainNo floodplain Straight pathStraight path Fastest flowFastest flow Heavy erosionHeavy erosion

STAGES OF STAGES OF DEVELOPMENTDEVELOPMENT

MATURE MATURE STAGESTAGE Not as steep Not as steep

banksbanks Small floodplainSmall floodplain Slight meandersSlight meanders Moderate flowModerate flow Moderate Moderate

erosionerosion

STAGES OF STAGES OF DEVELOPMENTDEVELOPMENT

OLD STAGEOLD STAGE Gently sloping Gently sloping

banksbanks Large floodplainLarge floodplain Large meandersLarge meanders Slowest flowSlowest flow Little or no Little or no

erosionerosion