Regents Earth Science Test Preparation Practice

    Properties Identification And Use Of Minerals

    Base your answers to questions 1 on the geologic cross section and graph below, and on your knowledge of Earth science. The cross section represents the intrusive igneous rock of the Palisades sill and surrounding bedrock located on the west side of the Hudson River across from New York City. The graph indicates changes in the percentages of the major minerals found in the sill.

    dynamic-earth, rock-cycle, rocks-and-minerals, formation-classification-and-application-of-rocks, standard-6-interconnectedness, systems-thinking, standard-6-interconnectedness, models fig: esci62015-exam_g35.png


    Base your answers to questions 9 on the passage below and on your knowledge of Earth science.

    Island Arcs

    Island arcs are long, curved chains of oceanic islands associated with seismic activity and mountain-building processes at certain plate boundaries. They occur where oceanic tectonic plates collide. Along one side of these island arcs, there is usually a long, narrow deep-sea trench.

    At island arcs, the denser plate is subducted and is forced into the partially molten mantle under the less dense plate. The islands are composed of the extrusive igneous rocks basalt and andesite. The basalt originates most likely from the plastic mantle. The andesite originates most likely from the melting of parts of the descending plate and sediments that had accumulated on its surface.


    Base your answers to questions 10 on the map and table below and on your knowledge of Earth science. The map shows the area where the Battenkill River flows into the Hudson River north of Albany, New York. Point A indicates a location within the Battenkill River. The table shows the densities of four common minerals found in Hudson River sediments.

    reference-tables, relationship-of-transported-particle-size-to-water-velocity, landscapes, erosion-and-natural-agents-of-erosion, standard-1-math-and-science-inquery, changing-length-of-a-shadow-based-on-the-motion-of-the-sun fig: esci12016-examw_g48.png


    Base your answers to questions 11 on the diagram in image provided and on your knowledge of Earth science. The diagram represents the apparent paths of the Sun observed in solar time (time based on the Sun’s position in the sky) at Albany, New York, on June 21 and December 21. A portion of the Sun’s path on June 21 is shaded. A protractor has been included in the diagram.


    Base your answers to questions 12 on the passage below and on your knowledge of Earth science.

    Carrara Marble

    Carrara marble is named for the town of Carrara on the west coast of Italy. This dazzling white marble has been mined since the time of the ancient Romans and remains the major industry of the area today. The marble has many commercial uses, such as tombstones, countertops, tiles, and building stones. Its chemical purity, uniform color, and hardness make this marble an ideal material for artists who carve statues from rock. Major museums around the world have statues carved from Carrara marble.

    The formation of Carrara marble began 200 million years ago when a great thickness of tiny shells was deposited at the bottom of a warm, shallow sea. Over time, burial and compaction of these sediments formed sedimentary rock primarily composed of pure calcite. Approximately 27 million years ago, tectonic forces caused this area of the seafloor bedrock to be deformed and metamorphosed, forming the Carrara marble. Uplift and erosion later exposed huge formations of this famous marble.


    Base your answers to questions 13 on the information below.

    A student on a field trip in New York State collected a sample of metamorphic bedrock containing bands of coarse-grained crystals of plagioclase feldspar, pyroxene, quartz, and mica.


    Base your answers to questions 14 on the geologic cross section shown below and on your knowledge of Earth science.

    reference-tables, scheme-for-metamorphic-rock-identification, rocks-and-minerals, formation-classification-and-application-of-rocks, standard-1-math-and-science-inquery, changing-length-of-a-shadow-based-on-the-motion-of-the-sun, standard-6-interconnectedness, models fig: esci12016-examw_g45.png


    Base your answers to questions 15 on the generalized cross section of the Grand Canyon represented below and on your knowledge of Earth science. Some rock layers have been labeled. The rock layers have not been overturned.

    reference-tables, rock-cycle-in-earth-crust, rocks-and-minerals, formation-classification-and-application-of-rocks, standard-1-math-and-science-inquery, geocentric-model-heliocentric-model, standard-1-math-and-science-inquery, changing-length-of-a-shadow-based-on-the-motion-of-the-sun fig: esci12016-examw_g49.png