Study

Rivers

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Fill in the blank

tributary

this is the form of erosion in which rocks hit each other

attrition

fill-in the blank

infiltration

What process makes a gorge?

erosion

this is the border between river basins

watershed

when the river slows down, it drops the suspension. this is called_____

sediment

How can human cause floods?

Buidling dams that overflow, removing vegetation(water flows faster over lands with no vegetation),

tell me 5 ways we use rivers

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What are the 3 river processes?

Plucking, Freeze-Thaw Weathering, Moraine

Transportation, Weathering, Glockenspiel

Erosion, Transportation, Deposition

Erosion, Abrasion, Attrition

How does a waterfall make a gorge?

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This is the slowest course

lower

little rivers that flow into a big river

tributaries

where 2 rivers join

confluence

What does impermeable mean?

Water cannot pass through.

Explain what a flood is.

Floods occur when water overflows the river’s channel

this is the type of erosion that dissolves dirt

solution

a wide river mouth at a sea where fresh and sat water mix

estuary

Fill in the blank

source

what's this

oxbow lake

What processes create meanders and oxbow lakes?

transportation and deposition

erosion and deposition

erosion and transportation

this is the type of erosion in which water gets into cracks

hydraulic action

Explain how erosion happens.

Solution Abrasion Hydraulic action Attrition

How doe floods influence us?

drown us, destroy vegetation and buildings, diseases spread easily

Factors that contribute to flooding

Heavy rain, impermeable rock, steep land, tributaries, built up areas, cut down trees

the end of a river

mouth

Form of transportation that involves rocks rolling

traction

Form of transportation that involves bedload "bouncing"

saltation

liquid becoming vapor

evaporation

Fill in the blank

confluence

How does a meander turn into an oxbow lake?

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this is the type of erosion in which rocks hit the river bed

abrasion

What landform makes a gorge?

waterfall

This is the fastest course of a river

upper

What does deposition mean?

River drops its load

fill-in the blank

surface runoff

What is a flash flood?

A burst of heavy rain

Where do meanders and oxbow lakes form?

lower course

This course of the river has the source

upper

fill-in the blank

throughflow

This course is the widest part of the river (usually)

lower

How is a v-shaped valley formed?

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these are the rocks on the river bed

bedload