earth's changing surface review and assessment answers

Earth's Changing SurfaceReview and Assessment

Answers

Reviewing Key Terms

1. A landform that has high elevation but a mostly flat surface is a a. plain b. mountain c. mountain range d. plateau

Reviewing Key Terms

2. The equator divides the Earth into two equal halves called a. globes b. hemispheres c. degrees d. pixels

Reviewing Key Terms

3. Latitude is a measurement of distance north or south of the a. hemisphere b. equator c. index contour d. prime meridian

Reviewing Key Terms

4. To show show Earth's curved surface on a flat map, mapmakers choose different a. map projections b. globes c. scales d. landform regions

Reviewing Key Terms

5. The digitized data on a computer map is made up of a. index contours b. pixels c. contour intervals d. symbols

Reviewing Key Terms

6. On a topographic map, relief is shown using a. lines of latitude b. lines of longitude c. map projections d. contour lines

Reviewing Key Terms

7. Relief is a landform's height above sea level.

Reviewing Key Terms

7. Relief is a landform's height above sea level.

False- elevation

Reviewing Key Terms

8. The equator is a half-circle that extends from the North Pole to the South Pole.

Reviewing Key Terms

8. The equator is a half-circle that extends from the North Pole to the South Pole.

False- prime meridian

Reviewing Key Terms

9. If an airplane flew around Earth in a straight line from east to west, the airplane would cross lines of longitude.

Reviewing Key Terms

9. If an airplane flew around Earth in a straight line from east to west, the airplane would cross lines of longitude.

True

Reviewing Key Terms

10. An index contour is labeled to indicate the elevation along a contour line.

Reviewing Key Terms

10. An index contour is labeled to indicate the elevation along a contour line.

True

Checking Concepts

11. Compare the elevation of a coastal plain to that of an interior plain.

Checking Concepts

11. Compare the elevation of a coastal plain to that of an interior plain.

A coastal plain has low elevation, but an interior plain can have high or low elevation.

Checking Concepts

12. What is a mountain range?

Checking Concepts

12. What is a mountain range?

A mountain range is a series of mountains that have the same general shape and structure.

Checking Concepts

13. What do geologists call an area where there is mostly one kind of topography?

Checking Concepts

13. What do geologists call an area where there is mostly one kind of topography?

A large area of land where the topography is similar is called a landform region.

Checking Concepts

14. The South Island of New Zealand lies at about 170 E. What hemisphere is it in?

Checking Concepts

14. The South Island of New Zealand lies at about 170 E. What hemisphere is it in?

It is in the Eastern Hemisphere because it lies 170 degrees east of the prime meridian.

Checking Concepts

15. What is one advantage of a Mercator projection? What is one disadvantage?

Checking Concepts

15. What is one advantage of a Mercator projection? What is one disadvantage?

On a Mercator projection, the size and shape of landmasses near the equator are distorted only a little; but as you move towards the poles, size and shape become more distorted.

Checking Concepts

16. What information does a map's contour interval provide?

Checking Concepts

16. What information does a map's contour interval provide?

A map's contour interval states the amount by which elevation changes between each contour line.

Checking Concepts

17. How do the contour lines on a topographic map indicate the slope of the land?

Checking Concepts

17. How do the contour lines on a topographic map indicate the slope of the land?

Contour lines that are far apart indicate flat or gently sloping land. Contour lines that are close together indicate steeply sloping land.

Math Practice

18. Earth's diameter is about 13,000 kilometers. If a globe has a diameter of 0.5 meter, write the globe's scale as a ration. What distance on Earth would 1 centimeter on a globe represent?

Math Practice

18. Earth's diameter is about 13,000 kilometers. If a globe has a diameter of 0.5 meter, write the globe's scale as a ration. What distance on Earth would 1 centimeter on a globe represent?

1:26,000,000; 26,000,000 cm or 260 km.

Thinking Critically

19. Which would be more likely to show a shallow, 1.5 meter deep depression in the ground- a 1 meter contour interval or a 5 meter contour interval?

Thinking Critically

19. Which would be more likely to show a shallow, 1.5 meter deep depression in the ground- a 1 meter contour interval or a 5 meter contour interval?

A 1.5 meter-deep depression would not show on a map with a 5 meter contour interval because that interval only shows changes in elevation greater than 5 meters. The depression would show on a map with a 1-meter contour interval because the depression is greater than 1 meter.

Thinking Critically

20. Use the map below to answer the question. What is the latitude and longitude of Point A? In which hemispheres is Point A located?

Thinking Critically

20. Use the map below to answer the question. What is the latitude and longitude of Point A? In which hemispheres is Point A located?

Approximately 8 N latitude and 22 E longitude. Point A is located in the Northern and Eastern Hemispheres.

Thinking Critically

21. How would the colors in a satellite image of an area compare with those in a color photograph of the same area?

Thinking Critically

21. How would the colors in a satellite image of an area compare with those in a color photograph of the same area?

The colors in the photograph and the satellite image would be different. For example, vegetation often appears red, water appears black, and cities appear grayish blue.

Thinking Critically

22. Describe one way in which you could use a topographic map of your community.

Thinking Critically

22. Describe one way in which you could use a topographic map of your community.

Answers may vary!

Applying Skills

23. What is the elevation of the large lake? Which of the two Bubbles is higher?

Applying Skills

23. What is the elevation of the large lake? Which of the two Bubbles is higher?

Between 260 and 280 feet; the north Bubble has an elevation of more than 860 feet, which is higher than the south Bubble, at more than just 760 feet.

Applying Skills

24. Use the map scale to calculate the distance from the top of Penobscot Mountain to the large lake.

Applying Skills

24. Use the map scale to calculate the distance from the top of Penobscot Mountain to the large lake.

The distance is 0.5 m

Applying Skills

25. How can you tell whether the streams flow into or out of the large lake?

Applying Skills

25. How can you tell whether the streams flow into or out of the large lake?

The streams flow into the large lake because V-shaped contours point upstream.

Standardized Test Prep

1. On a map, what is the height above sea level of a point on Earth's surface? a. topography b. relief c. elevation d. latitude


2. You are an engineer preparing to build a new highway exit. You will need to look at details of the area where the new exit will be located. Which map scale would it be best to use, in order to see the needed topographic details? F. 1 centimeter=0.25 kilometers G. 1 centimeter=10.0 kilometers H. 1 centimeter=5.0 kilometers J. 1 centimeter= 2.5 kilometers


3. A topographic map profile shows the shape or relief of the land along a given line. Along line M-N on the map, which of the following would the profile most closely resemble? a. b. c. d.


4. What is the elevation of the point marked x on the map? F. 1400 meters G. 1500 meters H. 1485 meters J. 1515 meters


5. How is longitude measured? a. in degrees east or west of the prime meridian b. in degrees east or west of the equator c. in degrees north or south of the prime meridian d. in kilometers east or west of the prime meridian


6. Write a paragraph comparing a topographic map of an area with a satellite image of the same area. Assume that both are at the same scale. In your answer, explain how the topographic map and the satellite image are similar and how they are different.


6. Write a paragraph comparing a topographic map of an area with a satellite image of the same area. Assume that both are at the same scale. In your answer, explain how the topographic map and the satellite image are similar and how they are different. Both maps represent the same area at the same

scale. The topographic map displays the topography of the land. The satellite image might show land features, such as vegetation.

Rocks and Weathering

1. The process that splits rock through freezing and thawing is called A. erosion B. Chemical Weathering C. Ice Wedging D. Abrasion


2. Acid rain results in A. Chemical Weathering B. Abrasion C. Oxidation D. Mechanical Weathering


6. Mechanical Weathering is the removal of rock particles by gravity, wind, water, or ice.


6. Mechanical Weathering is the removal of rock particles by gravity, wind, water, or ice.

False- Erosion


11. What is the principle of uniformitarianism?


11. What is the principle of uniformitarianism? The principle of uniformitarianism states that the

same processes that operate today operated in the past.


12. Explain how plants can act as agents of both chemical and mechanical weathering?


12. Explain how plants can act as agents of both chemical and mechanical weathering? Plants are an agent of mechanical weathering when

their roots pry open cracks in rock. Plants are agents of chemical weathering when

their roots produce weak acids that slowly dissolve rock.


13. What is the role of gases, such as oxygen and carbon dioxide in chemical weathering?


13. What is the role of gases, such as oxygen and carbon dioxide in chemical weathering? Oxygen combines with iron in a process called

oxidation, which results in rust. Carbon dioxide dissolves in water to form carbonic acid, which weathers rock.


19. If mechanical weathering breaks a rock into pieces, how would this affect the rate at which the rock weathers chemically?


19. If mechanical weathering breaks a rock into pieces, how would this affect the rate at which the rock weathers chemically? Breaking a rock into pieces increases the rate at

which the rock will weather chemically because the broken rock has more surface area exposed to weathering agents


1. Which of the following is a type of mechanical weathering? A. Abrasion B. Freezing and Thawing C. Plant Growth D. All of the above


2. You are designing an experiment to test the resistance of weathering of various types of materials. What weathering process could be modeled using sandpaper? F. Acid Rain G. Freezing and Thawing H. Abrasion J. All of the above

Erosion and Deposition

1. The eroded materials carried by water or wind are called A. Stalactites B. Desert Pavement C. Sediment D. Moraines


2. The downhill movement of eroded materials is known as A. Mass movement B. Abrasion C. Deposition D. Deflation


3. Where a stream bed is rough, the stream flows more slowly because of A. Sediment B. Friction C. Deposition D. Potential Energy


6. The process by which sediment in water settles in new locations is mass movement.


6. The process by which sediment in water settles in new locations is mass movement. False, Deposition


7. Groundwater that flows in a thin layer over the land causes sheet erosion.


7. Groundwater that flows in a thin layer over the land causes sheet erosion. False- runoff


8. Because it is moving, flowing water has a type of energy called kinetic energy.


8. Because it is moving, flowing water has a type of energy called kinetic energy. True


9. A looplike bend in the river is called a meander.


9. A looplike bend in the river is called a meander. True


11. What agents of erosion are assisted by the force of gravity?


11. What agents of erosion are assisted by the force of gravity? The agents of erosion that are assisted by the force

of gravity are moving water and glaciers. Gravity itself causes mass movement and is therefore also an agent of erosion.


12. How do a river's slope and volume of flow affect the river's sediment load?


12. How do a river's slope and volume of flow affect the river's sediment load? In general, higher slope and higher volume of flow

increase a river's sediment load.


13. What is turbulence? How does it affect the speed of a river and the river's power to cause erosion?


13. What is turbulence? How does it affect the speed of a river and the river's power to cause erosion? Turbulence is rough-flowing water. It slows the

speed of a river, but often increases its power to erode.


14. Where is the speed of the flowing water in a river the slowest? Explain.


14. Where is the speed of the flowing water in a river the slowest? Explain. The speed of the flowing water in a river is the

slowest near the bottom, where friction is greatest.


18. Compare and contrast landslides and mudflows.


18. Compare and contrast landslides and mudflows. Both are types of mass movement that occur

rapidly and can be triggered by an earthquake. Unlike landslides, which are mostly dry, mudflows have a high percentage of water.


19. Under what conditions would you expect abrasion to cause the most erosion of a riverbed?


19. Under what conditions would you expect abrasion to cause the most erosion of a riverbed? Abrasion occurs when particles of sediment in

flowing water bump into the stream bed again and again. A very turbulent stream or the fast-flowing water of a flooding river would cause the most abrasion.


20. A salesperson offers to sell your family a new house right on a river bank for very little money. Why might you hesitate to buy this house?


20. A salesperson offers to sell your family a new house right on a river bank for very little money. Why might you hesitate to buy this house? A house right on a river bank is probably within the

river's flood plain. A family should hesitate because the house might be damaged or destroyed by a future flood.


1. As a stream flows from a mountainous area to a flatter area, what happens to the size of the sediment the stream normally carries? A. The sediment size does not change B. The sediment size carried by the stream

increases C. The sediment size carried by the stream

decreases D. The stream drops all the sediment it was

carrying


3. What is the erosional feature in the diagram? A. A meander B. A delta C. A flood plain D. Karst topography


4. In the diagram, where is the speed of the stream the greatest? F. At Y G. At X H. At W J. At Z


6. Describe how gravity is involved in the erosion of Earth's surface by mass movement, running water, and glaciers. Be sure to explain what erosion is.


6. Describe how gravity is involved in the erosion of Earth's surface by mass movement, running water, and glaciers. Be sure to explain what erosion is. Erosion is the picking up and moving of rock, sediment,

or soil. Gravity causes erosion by mass movement, running water, and glaciers. During mass movement, gravity pulls rock or sediment downhill. Running water moves downhill because of the force of gravity. As the water flows, it erodes earth's surface. Gravity also causes glacier ice to flow. The flowing ice erodes rock and sediment from some places and deposits rock and sediment at other places.

earth's changing surface review and assessment answers

Documents

reviewing key terms

plateau slide

true slide

false elevation slide

contour lines

false prime meridian

map projections

flat map