Download CP Earth Science

CP Earth Science
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Worksheet Unit 1
What is the rock cycle? (Refer to pg.119 rock cycle)
Why do some types of magma and lava form igneous rocks that are dark colored and
dense?
How do intrusive and extrusive igneous rocks differ?
How are granite and rhyolite similar? How are they different?
Which would most likely cause molten rock material to become glassy igneous rock?
a)cooling under high pressure
b)cooling over a long period of time
c) cooling on the surface
d)cooling at a great depth
Which would most likely occur during the formation of igneous rock?
a)compression and cementation of sediments
b)recrystallization of unmelted material
c)solidification of molten materials
d)evaporation and precipitation of sediments
A certain igneous rock is composed of large mineral grains. This suggests that the rock
formed
a)on the surface, under high pressure, and at a rapid rate of cooling
b)on the surface, at high temperature, and at a slow rate of cooling
c)under high pressure, at high temperature, and at a rapid rate of cooling
d)under high pressure, at high temperature, and at a slow rate of cooling
Which observation about an igneous rock would support the inference that rock cooled
slowly underground?
a)the rock has well-defined layers
b)the rock has large crystals
c)the rock is about 50 percent plagioclase feldspar
d)the rock is light in color and low in density
Extremely small crystal grains in an igneous rock are and indication that the crystals
formed
a)under high pressure
b)over a short period of time
c)from an iron-rich magma
d)deep below the surface of the earth
How are metamorphic rocks classified? What are the characteristics of rocks in each of
these classifications?
How is the formation of igneous rock different from that of metamorphic rock?
As the depth within the earth’s crust increases, the amount of sedimentary rock,
compared to the amount of non-sedimentary rock, will generally
a)increase b)decrease c)remain the same
Which characteristic of rocks tends to increase as the rocks are metamorphosed?
a)density
b)volume
c)permeability
Which type of sedimentary rock contains the greatest range of particle sizes?
a)conglomerate b)sandstone c)shale d)siltstone
What kind of rock is formed when rock fragments are deposited and cemented together?
a)igneous
b)metamorphic
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c)plutonic
d)sedimentary
Which process would form a sedimentary rock?
a)cooling of molten magma within the earth’s crust
b) recrystallization of unmelted material within the earth’s crust
c) cooling of a lava flow on the earth’s surface
d)precipitation of minerals as seawater evaporates
Which property best describes a rock which has formed from sediments?
a)crystalline structure
b)distorted structure
c)banding or zoning of minerals
d)fragmental particles arranged in layers
A massive sedimentary rock layer composed of uniformly small particles probably
formed from the
a)precipitation of material from seawater
b)cooling of a lava flow
c)cooling of magma
d)cementation of glacial material
What is the main difference between metamorphic rocks and most other rocks?
a)many metamorphic rocks contain only one mineral
b)many metamorphic rocks have an organic composition
c)many metamorphic rocks exhibit banding and distortion of structure
d)many metamorphic rocks contain a high amount of oxygen-silicon tetrahedra
Which statement correctly describes the distribution of sedimentary rocks on the earth?
a)sedimentary rock layers are thickest in the middle of the oceans
b)sedimentary rocks extend down into the earth’s crust as far as the inner core
c)sedimentary rocks are usually located in volcanic regions
d)sedimentary rocks usually form a thin layer over large areas of the continents