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What is the predominant form ofphysical weathering at high elevationsin New York State?

Ques. #1

Frost action (ice wedging)

Ans.

Name any 2 types of chemicalweathering.

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Ques. #2

Ans.

Hydration, carbonation, and oxidation

Why would crushing a rock speedup the rate of weathering?

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Ques. #3

Ans.

The exposed surface area would increase

At whichlocation wouldstream velocitybe greatest?

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Ques. #4

Ans.

Location B

Which agent oferosion created thissandstone arch?

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Ques. #5

Ans.

Wind

At which twolocations isdepositionprobablyoccurring?

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Ques. #6

Locations A and F

Ans.

Explain the pattern ofdeposition (in water)shown in the diagram.

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Ques. #7

Ans.

The smallest beads were the most dense andthe largest were the least dense.

Indicate two ways in which rocksare changed by long periods ofstream abrasion.

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Ques. #8

Ans.

The get rounder and smoother and smaller.

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Ques. #9

Ans.

Particle A

When dropped into water, whichparticle wouldsettle at the slowest rate?

Name any 2 characteristics of a stream that affect it’s velocity.

Ques. #10

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1) Slope (gradient)2) Volume (rate of discharge)3) Shape of the stream channel

Name any three methods by which materials are transported by a stream

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Ques. #11

Ans.

Floatation, rolling (saltation), suspension, solution

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Ques. #12

Ans.

It’s a erratic - it was transported by a glacier

This rock is differentfrom the bedrockbeneath it. What name is given tothis type of rock andhow did it get there?

What accountsfor the unevennature of thecliff face?

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Ques. #13

Ans.

Differences in the resistance (hardness) of the rock layers

What is the force driving all erosion?

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Ques. #14

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Gravity

What term describes particles smaller than clay which may remainin suspension for months beforesettling?

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Ques. #15

Ans.

Colloids

Which agent oferosion isresponsible fordepositing thissoil?

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Ques. #16

Ans.

Glaciers - the particles are unsorted

What is the opposite of erosion?

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Ques. #17

Ans.

Uplift (mountain building - orogeny)

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Ques. #18

Ans.

It is a meandering stream and the slope is nearly flat.

What kind of stream isthis and what do youknow about the slopeof the land where it isflowing.

What agent of erosionhas affected this areaand what evidence doyou see that supportsyour conclusion?

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Ques. #19

Ans.

Glaciers - parallel grooves in the rock

What is a residual soil?

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Ques. #20

Ans.

A soil that has formed from the bedrock immediatelybeneath it.

What kinds of particles will be carried by a stream moving at150 cm/sec?

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Ques. #21

Ans.

Pebbles and everything smaller

Name 3 characteristics of particlesthat affect the rate at which theysettle in still water.

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Ques. #22

Ans.

Size, shape, density

How long will it take for materialcarried in solution by a stream to settle out once the water stops moving?

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Ques. #23

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Material in solution will never settle

What kind of energy is constantlydecreasing during the process oferosion?

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Ques. #24

Ans.

Potential energy

What kind of rock is most affectedby acid rain?

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Ques. #25

Ans.

Carbonate rocks (limestone and marble)

Name four clues that would lead you to believe an area had been subject to glacial erosion.

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Ques. #26

Ans.

1) Parallel grooves in rocks2) Narrow, deep lakes3) U-shaped valleys4) Unsorted sediments5) Scratched & polished rock6) Erratics

Explain the sequenceof events that formed this valley.

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Ques. #27

Ans.

A glacier cut a U-shaped valley and after the glaciermelted a stream cut a V-shaped valley at the bottom.

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Ques. #28

Ans.

Location C (steepest = fastest)

At which locationwould a particlein this streamhave the greatestkinetic energy.

What are the two different kindsof glaciers?

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Ques. #29

Ans.

Continental and valley (Alpine)

What is another term for physical weathering?

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Ques. #30

Ans.

Mechanical weathering

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Running water is the chief agentof erosion on Earth