Syvum Home Page

Home > Examinations > NYSED Regents Exams > Earth Science - High School > Print Preview

Earth Science - New York Regents August 2006 Exam

This is a test of your knowledge of Earth science. Use that knowledge to answer all the question in this examination. Some questions may require the use of the Earth Science Reference Tables. The Earth Science Reference Tables are supplied separately. Be certain you have a copy of the 2001 Edition (Revised November 2006) of these reference tables before you begin the examination.
Formats View Examination Paper with Answers Solve Examination Paper Review

Hide all answers   View all answers   Print   Try the Quiz


Part A
Answer all questions in this part.
Directions (1−35): For each statement or question, identify the number of the word or expression that, of those given, best completes the statement or answers the question. Some questions may require the use of the Earth Science Reference Tables.

1. A Foucault pendulum appears to change its direction of swing over a period of several hours because of Earth's
(1) rotation
(2) revolution
(3) tilted axis
(4) gravity
1

2. The same side of the Moon always faces Earth because the
(1) Moon’s period of rotation is longer than its period of revolution around Earth
(2) Moon’s period of rotation is shorter than its period of revolution around Earth
(3) Moon rotates once as it completes one revolution around Earth
(4) Moon does not rotate as it completes one revolution around Earth
3

3. The diagram below shows the elliptical orbit of a planet revolving around a star. The star and F2 are the foci of this ellipse.

What is the approximate eccentricity of this ellipse?
(1) 0.22
(2) 0.47
(3) 0.68
(4) 1.47
3


4. The diagrams below represent Earth’s ocean tides at four different positions of the Moon. Which diagram shows the Moon position that will produce the highest high tides and the lowest low tides? (The diagrams are not drawn to scale.)

1

5. From which New York State location would Polaris be observed to have an altitude closest to 43° above the northern horizon?
(1) Binghamton
(2) Utica
(3) Watertown
(4) New York City
2

6. In October, observers in New York State looking due south at the night sky would see a different group of constellations than they had seen in March. What is the best explanation for this change in the night sky?
(1) Constellations revolve around Earth.
(2) Constellations revolve around the Sun.
(3) The Sun revolves around the center of our galaxy.
(4) Earth revolves around the Sun.
4

7. Which surface soil type has the slowest permeability rate and is most likely to produce flooding?
(1) pebbles
(2) sand
(3) silt
(4) clay
4

8. Which map best represents the surface wind pattern around a Northern Hemisphere highpressure center?

3

9. What is the relative humidity when the air temperature is 29°C and the wet-bulb temperature is 23°C?
(1) 6%
(2) 20% 
(3) 54%
(4) 60%
4

10. The diagram below represents an aneroid barometer that shows the air pressure, in inches of mercury.

When converted to millibars, this air pressure is equal to
(1) 1009.0 mb
(2) 1012.5 mb
(3) 1015.5 mb
(4) 1029.9 mb
2

11. Great volcanic eruptions send dust and ash into the stratosphere. Weeks after such great eruptions, air temperatures are often
(1) cooler than normal because the atmosphere is less transparent
(2) cooler than normal because the atmosphere is more transparent
(3) warmer than normal because the atmosphere is less transparent
(4) warmer than normal because the atmosphere is more transparent
1

12. A P-wave takes 8 minutes and 20 seconds to travel from the epicenter of an earthquake to a seismic station. Approximately how long will an S-wave take to travel from the epicenter of the same earthquake to this seismic station?
(1) 6 min 40 sec
(2) 9 min 40 sec
(3) 15 min 00 sec
(4) 19 min 00 sec
3


Base your answers to questions 13 and 14 on the weather map below, which shows a low-pressure system centered near Poughkeepsie, New York. Isobars shown are measured in millibars.

 
13. Which city is most likely experiencing winds of the greatest velocity?
(1) New York City
(2) Binghamton
(3) Poughkeepsie
(4) Scranton
3

14. Surface winds are most likely blowing from
(1) Danbury toward New York City
(2) Poughkeepsie toward Scranton
(3) Binghamton toward Danbury
(4) Port Jervis toward Binghamton
3


15. Scientists have inferred the structure of Earth’s interior mainly by analyzing
(1) the Moon’s interior
(2) the Moon’s composition
(3) Earth's surface features
(4) Earths seismic data
4

16. Which process transfers energy primarily by electromagnetic waves?
(1) radiation
(2) evaporation
(3) conduction
(4) convection
1

17. The cross section below shows the direction of movement of an oceanic plate over a mantle hot spot, resulting in the formation of a chain of volcanoes labeled A, B, C, and D. The geologic age of volcano C is shown.

What are the most likely geologic ages of volcanoes B and D?
(1) B is 5 million years old and D is 12 million years old.
(2) B is 2 million years old and D is 6 million years old.
(3) B is 9 million years old and D is 9 million years old.
(4) B is 10 million years old and D is 4 million years old.
1

18. New York State landscape regions are identified and classified primarily by their
(1) surface topography and bedrock structure
(2) existing vegetation and type of weather
(3) latitude and longitude
(4) chemical weathering rate and nearness to large bodies of water
1

19. A stream flowing at a velocity of 75 centimeters per second can transport
(1) clay, only
(2) pebbles, only
(3) pebbles, sand, silt, and clay, only
(4) boulders, cobbles, pebbles, sand, silt, and clay
3

20. The cross sections below show a three-stage sequence in the development of a glacial feature.

Which glacial feature has formed by the end of stage 3?
(1) kettle lake
(2) finger lake
(3) drumlin
(4) parallel scratches
1

21. Which diagram best shows the Suns apparent path, as seen by an observer on July 21 in New York State?

1

22. The map below shows barrier islands in the ocean along the coast of Texas.

Which agent of erosion most likely formed these barrier islands?
(1) mass movement
(2) wave action
(3) streams
(4) glaciers
2

23. What will be the most probable arrangement of rock particles deposited directly by a glacier?
(1) sorted and layered
(2) sorted and not layered
(3) unsorted and layered
(4) unsorted and not layered
4

24. Which two gases have been added to Earth’s atmosphere in large amounts and are believed to have increased global warming by absorbing infrared radiation?
(1) neon and argon
(2) chlorine and nitrogen
(3) hydrogen and helium
(4) methane and carbon dioxide
4

25. The cross section below shows soil layer X, which was formed from underlying bedrock.

Which change would most likely cause soil layer X to increase in thickness?
(1) a decrease in slope
(2) a decrease in rainfall
(3) an increase in biologic activity
(4) an increase in air pressure
3

26. The diagram below shows wind flowing over a mountain range.

As the wind flows down the leeward side of the mountain range, the air becomes
(1) cooler and drier
(2) cooler and wetter
(3) warmer and drier
(4) warmer and wetter
3

27. The cross section of a house is shown below. Open stairways allow air to move from one floor to another. The ridge vent is an opening in the roof that allows air to move in or out of the attic.

During a windless summer day, the air inside this house is warmed by the Sun. In which cross section do the arrows show the most likely air movement when the windows are opened?

1

28. The ozone layer helps life on Earth because ozone
(1) modifies the normal El Niño weather pattern
(2) reflects insolation from the Sun
(3) absorbs damaging ultraviolet radiation from the Sun
(4) deflects winds from a straight line to a curved path
3

29. Under identical conditions, which surface will reflect the greatest amount of insolation?
(1) a basaltic sand beach
(2) a pine tree forest
(3) a glacial ice sheet
(4) a blacktop parking lot
3

30. The diagram below shows Earth on a particular day in its orbit around the Sun. The dashed line represents Earth’s axis.

Which date is represented by the diagram?
(1) March 21
(2) June 21
(3) September 23
(4) December 21
4

31. Fossils of trilobites, graptolites, and eurypterids are found in the same bedrock layer in New York State. During which geologic time interval could this bedrock layer have formed?
(1) Late Ordovician to Early Devonian
(2) Late Silurian to Early Cretaceous
(3) Early Permian to Late Jurassic
(4) Early Cambrian to Middle Ordovician
1

32. Wavy bands of light and dark minerals visible in gneiss bedrock probably formed from the
(1) cementing together of individual mineral grains
(2) cooling and crystallization of magma
(3) evaporation of an ancient ocean
(4) heat and pressure during metamorphism
4

33. The table below shows the hardness of four common materials.

Which statement best describes the hardness of the mineral dolomite?
(1) Dolomite can scratch window glass, but cannot be scratched by a fingernail.
(2) Dolomite can scratch window glass, but cannot be scratched by a steel nail.
(3) Dolomite can scratch a copper penny, but cannot be scratched by a fingernail.
(4) Dolomite can scratch a copper penny, but cannot be scratched by a steel nail.
3

34. The block diagram below of a portion of Earth’s crust shows four zones labeled A, B, C, and D outlined with dashed lines.

In which zone is a younger rock unit on top of an older rock unit?
(1) A
(2) B
(3) C
(4) D
1

35. The graph below shows the rate of decay of the radioactive isotope K-40 into the decay products Ar-40 and Ca-40.

Analysis of a basalt rock sample shows that 25% of its radioactive K-40 remained undecayed. How old is the basalt?
(1) 1.3 billion years
(2) 2.6 billion years 
(3) 3.9 billion years
(4) 4.6 billion years
2



Part B-1

Answer all questions in this part.


Directions (36-50): For each statement or question, identify the number of the word or expression that, of those given, best completes the statement or answers the question. Some questions may require the use of the Earth Science Reference Tables.
Base your answers to questions 36 and 37 on the diagram below, which shows the Moon, Earth, and the Sun’s rays as viewed from space. Letter A indicates a certain position of the Moon in its orbit.

 
36. Which diagram correctly shows the direction of Earth’s rotation and revolution?

3

37. Which diagram represents the phase of the Moon, as seen by an observer on Earth, when the Moon is located at position A in its orbit?

1


Base your answers to questions 38 through 40 on the passage below and on your knowledge of Earth science.

A Newly Discovered Planet


Scientists studying a Sun-like star named Ogle-Tr-3 discovered a planet that is, on the average, 3.5 million kilometers away from the star’s surface. The planet was discovered as a result of observing a cyclic decrease in the brightness of Ogle-Tr-3 every 28.5 hours. The changing brightness is the result of the planet blocking some of the starlight when it is between Ogle-Tr-3 and Earth. This observation allowed scientists to find not only the planet, but also to determine the planet’s mass and density. The mass has been calculated to be approximately 159 times the mass of Earth. The planet is only 20% as dense as Jupiter. Scientists think that this low density is the result of being very close to Ogle-Tr-3.


38. Compared to the period of revolution of Mercury and Venus, this newly discovered planets period of revolution is
(1) shorter than both Mercury’s and Venus’
(2) longer than both Mercury’s and Venus’
(3) shorter than Mercury’s but longer than Venus’
(4) longer than Mercury’s but shorter than Venus’
1

39. The density of the discovered planet has been estimated to be approximately
(1) 5.5 g/cm3
(2) 2.0 g/cm3
(3) 1.3 g/cm3
(4) 0.3 g/cm3
4

40. The planet was discovered when it passed between Earth and the star Ogle-Tr-3. Which event in our solar system results from a similar type of alignment of the Moon between Earth and the Sun?
(1) summer solstice
(2) winter solstice
(3) solar eclipse
(4) lunar eclipse
3


Base your answers to questions 41 through 44 on the topographic map below. Elevations are in feet. Points A and B are locations on the map.

 
41. Toward which direction does the Green River flow?
(1) northeast
(2) northwest
(3) southeast
(4) southwest
2

42. What is the gradient along the straight line between points A and B?
(1) 10 ft/mi
(2) 20 ft/mi 
(3) 25 ft/mi
(4) 35 ft/mi
3

43. Which graph best represents the profile along line AB?

3

44. What evidence can be used to determine that the land surface in the northeast corner of the map is relatively flat?
(1) a rapidly flowing river
(2) a large region covered by water 
(3) the dark contour line labeled 300
(4) the absence of many contour lines
4


Base your answers to questions 45 through 47 on the diagram below, which shows a coastal region in which the land slopes toward the ocean. Point X is near the top of the hill, point Y is at the base of the hill, and point Z is a location at sea level. The same type of surface bedrock underlies this entire region. A stream flows from point X through point Y to point Z. This stream is not shown in the diagram.

 
45. Which diagram best shows the most probable path of the stream flowing from point X to point Z?

1

46. Compared to the stream velocity between point X and point Y, the stream velocity between point Y and point Z is most likely
(1) greater, since the slope of the land decreases
(2) greater, since the slope of the land increases
(3) less, since the slope of the land decreases
(4) less, since the slope of the land increases
3

47. Which cross section best shows the pattern of sediments deposited by the stream as it enters the ocean near point Z?

3


Base your answers to questions 48 through 50 on the drawings of six sedimentary rocks labeled A through F.

 
48. Most of the rocks shown were formed by
(1) volcanic eruptions and crystallization
(2) compaction and/or cementation 
(3) heat and pressure
(4) melting and/or solidification
2

49. Which two rocks are composed primarily of quartz, Feldspar, and clay minerals?
(1) rock salt and conglomerate
(2) rock salt and breccia 
(3) sandstone and shale
(4) sandstone and limestone
3

50. Which table shows the rocks correctly classified by texture?

1



Part B-2

Answer all questions in this part.


Directions (51-64): Record your answers in the spaces provided below. Some questions may require the use of the Earth Science Reference Tables.
Base your answers to questions 51 through 53 on the passage below  and on your knowledge of Earth science..

The Future of the Sun


Hydrogen gas is the main source of fuel that powers the nuclear reactions that occur in the Sun. But just like many sources of fuel, the hydrogen is in limited supply. As the hydrogen gas is used up, scientists predict that the helium created as an end product of earlier nuclear reactions will begin to fuel new nuclear reactions. When this happens, the Sun is expected to become a red giant star with a radius that would extend out past the orbit of Venus and possibly out as far as Earth’s orbit. Earth will probably not survive this change in the Sun’s size. But no need to worry at this time. The Sun is not expected to expand to this size for a few billion years.


51. Identify the nuclear reaction referred to in this passage that combines hydrogen gas to form helium and produces most of the Sun’s energy. [1]
MODEL ANSWER GIVEN BELOW
[1] Allow 1 credit for fusion or nuclear fusion.


52. On the diagram of the planets and the Sun’s surface below, draw a vertical line to represent the inferred location of the Sun’s surface when it becomes a red giant star. [1]
_______

MODEL ANSWER GIVEN BELOW
[1] Allow 1 credit for a vertical line drawn anywhere through the shaded area shown below. The line does not have to be perfectly vertical.


53. Explain why a red giant star, similar to Aldebaran, has a greater luminosity than the Sun. [1]
_______
_______
MODEL ANSWER GIVEN BELOW
[1] Allow 1 credit. Acceptable responses include, but are not limited to:
Aldebaran is larger than the Sun.
— The Sun is smaller than Aldebaran.



Base your answers to questions 54 through 58 on the geologic cross section below and on your knowledge of Earth science. The cross section shows New York State index fossils in rock layers that have not been overturned. Rock unit A is an igneous intrusion and line XY represents an unconformity.

 
54. Based on fossil evidence, determine the geologic period during which the unconformity formed. [1]
_______ Period
MODEL ANSWER GIVEN BELOW
[1] Allow 1 credit for Devonian Period.


55. Identify the coral index fossil that would most likely be found in the same layer as the index fossil Ctenocrinus. [1]
_______
MODEL ANSWER GIVEN BELOW
[1] Allow 1 credit for Pleurodictyum.


56. Each index fossil existed for a relatively short geologic time interval. State one other characteristic that each fossil must have to be considered an index fossil. [1]
_______
_______
MODEL ANSWER GIVEN BELOW
[1] Allow 1 credit. Acceptable responses include, but are not limited to:
— widespread geographic distribution


57. Describe the type of depositional environment in which the fossilized Organisms lived. [1]
_______
_______
MODEL ANSWER GIVEN BELOW
[1] Allow 1 credit. Acceptable responses include, but are not limited to:
— The organisms lived in a shallow sea.
— They lived in a marine environment.


58. Identity one piece of evidence shown in this cross section that indicates that the igneous intrusion, A, is older than the sandstone layer. [1]
_______
_______
_______
MODEL ANSWER GIVEN BELOW
[1] Allow 1 credit. Acceptable responses include, but are not limited to:
— There is no contact metamorphism between rock unit A and the sandstone.
—  An unconformity exists between the igneous intrusion and sandstone layer.



Base your answers to questions 59 through 61 on the cross section below and on your knowledge of Earth science. The cross section shows a portion of Earth’s interior. Layer X is part of Earth’s interior.

 
59. Identify the texture and relative density of the granitic bedrock of the continental crust and the basaltic bedrock of the oceanic crust. [2]
Granitic bedrock  
Texture:  _______
Density
_______
 
Basaltic bedrock   
Texture: _______
Density: _______

MODEL ANSWER GIVEN BELOW
[2] Allow a maximum of 2 credits, allocated as follows:
• Allow 2 credits it all four responses are correct. Acceptable responses include, but are not limited to:
Granitic bedrock  
Texture:  Density: 
— coarse —  low density 
— nonvesicular —  2.7 g/cm3
   
Basaltic bedrock   
Texture: Density:
—  fine    —  high density 
—  vesicular or nonvesicular  —  3.0 g/cm3 


• Allow 1 credit if only two or three of the responses for the textures and densities are correct.


60. The minerals biotite and amphibole may be found in igneous bedrock of both the oceanic crust and the continental crust. Identify two other minerals commonly found in the basaltic oceanic crust. [1]
_______ and _______
MODEL ANSWER GIVEN BELOW
[1] Allow 1 credit if both minerals are correct. Acceptable responses include, but are not limited to:
—  olivine
—  pyroxene or augite
—  plagioclase or plagioclase feldspar
Note: Do not accept “feldspar” only.


61. Identify the part of Earth’s lithosphere represented by layer X. [1]
_______
MODEL ANSWER GIVEN BELOW
[1] Allow 1 credit. Acceptable responses include, but are not limited to:
—  rigid mantle
—  uppermost part of the mantle



Base your answers to questions 62 through 64 on the map below, which shows the generalized surface bedrock for a portion of New York State that appears in the Earth Science Reference Tables.

62. Place an X on the map to represent a location in the Tug Hill Plateau landscape region. [1]

MODEL ANSWER GIVEN BELOW
[1] Allow 1 credit if the center of the X is located within the shaded area shown. Also allow credit if a symbol other than X is used.


63. State the longitude of Mt. Marcy, New York, to the nearest degree. The units and compass direction must be included in your answer. [1]
Longitude: _______
MODEL ANSWER GIVEN BELOW
[1] Allow 1 credit for 74° W. The correct unit and compass direction must be included in the answer.


64. Identify the geologic age and name of the surface metamorphic bedrock found at Mt. Marcy. [1]
Geologic age: _______
Name of Bedrock: _______
MODEL ANSWER GIVEN BELOW
[1] Allow 1 credit if both the name of the geologic age and the name of the bedrock are correct. Acceptable responses include, but are not limited to:
Geologic age: — Proterozoic
— Middle Proterozoic
— Precambrian
— about 1000 million years
Name of bedrock: —  anorthositic
—  anorthositic




Part C

Answer all questions in this part.


Directions (65-82): Record your answers in the spaces provided below. Some questions may require the use of the Earth Science Reference Tables.
65. Part of which generalized New York State landscape region is drained by the Susquehanna River and its tributaries? [1]
_______
MODEL ANSWER GIVEN BELOW
[1] Allow 1 credit. Acceptable responses include, but are not limited to:
—  Allegheny Plateau
—  Appalachian Plateau (uplands)
—  Catskills


66. The diagram below shows a model of the water cycle. The arrows show the movement of water molecules through the water cycle. The circled numbers represent the processes that occur as the water molecules reach the different stages of the water cycle.

Complete the table below by identifying the name of the water cycle process occurring at each number. [2]

MODEL ANSWER GIVEN BELOW
[2] Allow a maximum of 2 credits, allocated as follows:
• Allow 2 credits if five or six processes are correctly identified.

• Allow 1 credit if only three or four processes are correctly identified.



Base your answers to questions 67 through 69 on the cross section below, which shows the major surface features of Earth along 25° S latitude between 75° W and 15° E longitude. Points A, B, and C represent locations on Earth’s crust.

 
67. Identity the crustal feature located at point A. [1]
_______
MODEL ANSWER GIVEN BELOW
[1] Allow 1 credit. Acceptable responses include, but are not limited to:
—  trench
—  Peru-Chile trench
—  a subduction zone
—  a convergent boundary
—  a fault


68. Identify the tectonic plate motion that is causing an increase in the distance between South America and Africa. [1]
_______
MODEL ANSWER GIVEN BELOW
[1] Allow 1 credit. Acceptable responses include, but are not limited to:
—  divergence
—  seafloor spreading


69. Bedrock samples were taken at the mid-ocean ridge and points B and C. On the grid below, draw a line to show the relative age of the bedrock samples between these locations. [1]

MODEL ANSWER GIVEN BELOW
[1] Allow 1 credit for a correctly drawn line. The line may be curved or straight, and the lowest point should be at the mid-ocean ridge.



Base your answers to questions 70 through 74 on the passage below and on your knowledge of Earth science. The passage describes a tornado produced from a thunderstorm that moved through a portion of New York State on May 31, 1998.

New York Tornado


A small tornado formed and moved through the town of Apalachin, New York, at 5:30 p.m., producing winds between 40 and 72 miles per hour. The tops of trees were snapped off, and many large limbs fell to the ground. The path of the destruction measured up to 200 feet wide. At 5:45 p.m., the tornado next moved through the town of Vestal where winds ranged between 73 and 112 miles per hour. Many people experienced personal property damage as many homes were hit with flying material.
At 6:10 p.m., the tornado moved close to Binghamton, producing winds between 113 and 157 miles per hour. A 1000-foot television tower was pushed over, and many heavy objects were tossed about by the strong winds. Then the tornado lifted off the ground for short periods of time and bounced along toward the town of Windsor. At 6:15 p.m., light damage was done to trees as limbs fell and small shallow-rooted trees were pushed over in Windsor.
The tornado increased in strength again at 6:20 p.m. as it moved into Sanford. Some homes were damaged as their roof shingles and siding were ripped off. One mobile home was turned over on its side.
The tornado moved through the town of Deposit at 6:30 p.m., creating a path of destruction 200 yards wide. The tornado skipped along hilltops, touching down occasionally on the valley floors. However, much damage was done to homes as the tornado’s winds reached their maximum speeds of 158 to 206 miles per hour. The tornado weakened and sporadically touched down after leaving Deposit. By 7:00 p.m., the tornado had finally ended its 1½-hour rampage.


70. On the map below, draw the path of the tornado and the direction the tornado moved, by following the directions below. [2]
• Place an X through the point for each of the six towns mentioned in the passage.
• Connect the Xs with a line in the order that each town was mentioned in the passage.
• Place an arrow at one end of your line to show the direction of the tornado’s movement.

MODEL ANSWER GIVEN BELOW
[2] Allow a maximum of 2 credits, allocated as follows:

• Allow 2 credits it an X is correctly placed on each of the six towns, and a line correctly connects the six towns in the order described in the article. The arrow should point eastward and does not need to be at the end of the line.

• Allow 1 credit if an X is correctly placed on only four or five towns, and a line correctly connects the four or five towns in the order described in the article. The arrow should point eastward and does not need to be at the end of the line.

or


• Allow 1 credit it an X is correctly placed on each of the six towns, but the line and/or the arrow has been incorrectly drawn or omitted.

Note: Also allow credit if a symbol other than X is used.


71. The tornado mentioned in this passage was produced by cold, dry air from Canada quickly advancing into warm, moist air already in place over the northeastern United States. List the two-letter air-mass symbols that would identify each of the two air masses responsible for producing this tornado. [1]
_______ and _______
MODEL ANSWER GIVEN BELOW
[1] Allow 1 credit for two correct responses. Allow credit for either upper or lower-case letters. For example, allow credit for MT or Mt or mt or mT. Acceptable responses include, but are not limited to:
—  cP and mT
—  mT and cP
—  mT and cA
—  cA and mT
Note: Do not allow credit if the letters are reversed, eg., Tm.


72. Which type of front was located at the boundary between the advancing cold, dry air mass and the warm, moist air mass? [1]
_______ front
MODEL ANSWER GIVEN BELOW
[1] Allow 1 credit for cold front.


73. Using the Fujita Scale shown below and the information in the passage, complete the table below, by assigning an F-Scale number for the tornado as it passed through each town given in the table. [1]


MODEL ANSWER GIVEN BELOW
[1] Allow 1 credit if three or four classifications are correct, as shown below.


74. Calculate the tornado’s average rate of travel, in miles per minute, between Vestal and Windsor, by using the equation below. Express your answer to the nearest tenth. [1]
 
rate = _______ mi/min
MODEL ANSWER GIVEN BELOW
[1] Allow 1 credit for 0.7 mi/m.



Base your answers to questions 75 through 79 on the map and data tables below. The map shows the location of Birdsville and Bundaberg in Australia. Data table 1 shows the average monthly high temperatures for Birdsville. Data table 2 includes the latitude and longitude, elevation above sea level, and the average rainfall in January for Birdsville and Bundaberg.

 
75. On the grid below, plot with an X the average monthly high temperatures for Birdsville, Australia. Connect the Xs with a line. The average monthly high temperatures for Bundaberg have already been plotted on the graph for you. [1]

MODEL ANSWER GIVEN BELOW
[1] Allow 1 credit if the centers of ten, eleven, or twelve plotted Xs are within the circles shown and the Xs are correctly connected with a line.


76. State one factor that could account for the difference between the average high temperatures recorded in December for Birdsville and Bundaberg. [1]
_______
_______
_______
MODEL ANSWER GIVEN BELOW
[1] Allow 1 credit. Acceptable responses include, but are not limited to:
—  Birdsville is located inland near the center of the continent.
—  Bundaberg is located near a large body of water (the ocean) that moderates climate temperatures.


77. State one reason for the difference in the average January rainfall for Birdsville and Bundaberg. [1]
_______
_______
_______
MODEL ANSWER GIVEN BELOW
[1] Allow 1 credit. Acceptable responses include, but are not limited to:
—  Bundaberg is located near the ocean.
—  Birdsville is located inland.
—  The warm ocean current affects the climate of Bundaberg.
—  Bundaberg is located on the Windward side of the mountain.


78. Explain why Bundaberg will experience solar noon before Birdsville each day. [1] _______
_______
MODEL ANSWER GIVEN BELOW
[1] Allow 1 credit. Acceptable responses include, but are not limited to:
—  Bundaberg is located east of Birdsville.
—  Birdsville is west of Bundaberg.
—  Earth rotates west to east.


79. On the map below, draw the 30° S latitude line. [1]

MODEL ANSWER GIVEN BELOW
[1] Allow 1 credit for drawing a horizontal line at 30° S latitude within the shaded area shown below.



Base your answers to questions 80 through 82 on the passage below and on your knowledge of Earth science.

Asteroids


Most known asteroids are found orbiting the Sun approximately halfway between the orbits of Mars and Jupiter, in a vast ring known as the Asteroid Belt. Occasionally, though, an asteroid leaves this orbit belt and moves into a more eccentric orbit that brings it into the inner solar system. This sudden change may be caused by an impact with another asteroid or by the gravitational pull of Jupiter or Mars.
The closest known near-Earth collision was in 1994, when asteroid 1994 XL1 came within the Moon’s orbit at a distance of 100,000 kilometers from Earth. Earth had missed hitting this asteroid by a mere 52 minutes. This asteroid was only about 15 hours away from Earth when it was first noticed. Only 30 feet in diameter, 1994 XL1 was 100,000 times fainter than an object that could be seen with the naked eye. Each year other asteroids are spotted coming close to Earth.
Evidence on Earth indicates that some asteroids have a come close enough to be drawn into Earth by gravitational attraction. A 110-mile-wide crater discovered by oil geologists under the Yucatan Peninsula and the Gulf of Mexico is one such piece of evidence. This crater is closely linked to the extinction of the dinosaurs. Some scientists estimate that a 10-mile-wide asteroid caused this crater.


80. Approximately how many million kilometers from the Sun is the Asteroid Belt? [1]
_______ million km
MODEL ANSWER GIVEN BELOW
[1] Allow 1 credit for any value from 400 to 600 million km.


81. State one probable reason why asteroid 1994 XL1 was so close to Earth before being spotted by astronomers. [1] _______
_______
MODEL ANSWER GIVEN BELOW
[1] Allow 1 credit. Acceptable responses include, but are not limited to:
—  Asteroid 1994 XL1 was very small.
—  The asteroid was 100,000 times fainter than the naked eye could see.
—  Asteroid 1994 XL1 was dark colored.


82. Some scientists believe an asteroid impact on Earth caused the extinction of the last of the dinosaurs. How many million years ago did this asteroid impact occur? [1]
_______ million yr
MODEL ANSWER GIVEN BELOW
[1] Allow 1 credit for 65 million yr.



  Try the Quiz :     Earth Science - New York Regents August 2006 Exam


Contact Info © 1999-2017 Syvum Technologies Inc. Privacy Policy Disclaimer and Copyright
Previous
-
Next
-