A river dissolves salt. Is this achemical or a physical change ANDexplain why.
Back
Ques. #2
Ans.
Physical. The salt has not been chemicallychanged. When the water evaporates thesalt remains.
What formed thisvalley AND explainhow you know?
Back
Ques. #3
Ans.
Formed by glaciers – It’s U-shaped
The tear-dropshaped featurein the photo iscomposed ofwhat kind ofsediment?
Back
Ques. #5
Ans.
UNSORTED glacial till
Explain the pattern ofdeposition (in water)shown in the diagram.
Back
Ques. #7
Ans.
The smallest beads were the most dense andthe largest were the least dense.
Indicate three ways in which rocksare changed by long periods ofstream abrasion.
Back
Ques. #8
Ans.
They get rounder and smoother and smaller.
Back
Ques. #9
Ans.
Particle D
When dropped into water, whichparticle wouldrequire the least time to settle?
During which season of the year would a stream in upstate NY becarrying the greatest total amount of sediment AND explain WHY?
Ques. #10
BackAns.
Spring. Because melting snow increases stream volume which increases stream velocity. The faster a stream is moving the more material it can carry.
At what point in the stream (give letter A - D and depth 0.1 to 0.9) is deposition most likely to occur?
Back
Ques. #11
Ans.
Location A at a depth of 0.5m
Back
Ques. #12
Ans.
These are MORAINES
What term refers tothe dark lines in themiddle and along thesides of this glacier ?
Describe how andwhere this pattern ofdeposition may haveoccurred?
Back
Ques. #13
Ans.
Where: In a lake. How: Deposition from streams carryingsediment into the lake repeating in an annual pattern.
What would be thepredominant agent of erosion for a climate that had a temperature of 25 degrees C and 30mm of annualprecipitation.
Back
Ques. #15
Ans.
In an arid climate wind is the most important agent.
Which agent oferosion isresponsible fordepositing thissoil?
Back
Ques. #16
Ans.
Glaciers - the particles are unsorted
When a piece of limestone is placed in acid, bubbles of carbon dioxide are produced? This is an example of whatprocess?
Back
Ques. #17
Ans.
Chemical weathering
Back
Ques. #18
Ans.
It is very old and the slope is nearly flat.
What do you know about the age and the slope of this river.
What agent of erosionhas affected this areaand what evidence doyou see that supportsyour conclusion?
Back
Ques. #19
Ans.
Glaciers - parallel grooves in the rock
A soil composed of silicate particlesand organic material is found on topof limestone (carbonate) bedrock.What kind of soil is this?
Back
Ques. #20
Ans.
A transported soil because its silicate compositionis unrelated to the carbonate bedrock beneath it.
What kinds of particles will be carried by a stream moving at5 cm/sec?
Back
Ques. #21
Ans.
Sand AND everything smaller
Name 3 characteristics of particlesthat can affect the rate at whichthey settle in still water.
Back
Ques. #22
Ans.
Size, shape, density
Which agent oferosion is responsible for eroding the valleyshown in the diagram?
Back
Ques. #23
Ans.
V-shaped valley cut by running water
What kind of energy is constantlydecreasing during the process oferosion?
Back
Ques. #24
Ans.
Potential energy
Back
Ques. #25
Ans.
1) Increase the slope2) Increase the amount of water in the trough3) Narrow the outlet
Name 3 differentways this equip-ment could bemodified in orderto increase therate of waterdischarge.
Name four clues that would lead you to believe an area had been subject to glacial erosion.
Back
Ques. #26
Ans.
1) Parallel grooves in rocks2) Narrow, deep lakes3) U-shaped valleys4) Unsorted sediments5) Scratched & polished rock6) Erratics
Back
Ques. #27
Ans.
Location D. Steepest slope means fastest rate of flow.
At which location can the stream carry the largest particles?
Back
Ques. #28
Ans.
Location A (The higher the elevation, the greater the Pe)
At which locationwould a particlein this streamhave the greatestpotential energy.