Old Earth Ministries Online Geology Curriculum

Geology Chapter 4 Test


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1: This type of rock is formed from the depostion of weathered rocks.
Igneous
Metamorphic
Sedimentary
2: Granite is composed of feldspars, micas, and calcite.
True
False
3: This type of rock is formed from the action of heat, pressure, and chemical change.
Igneous
Metamorphic
Sedimentary
4: Mica flakes off in sheets because of its perfect, one-directional cleavage.
True
False
5: This type of rock is formed when molten material cools.
Igneous
Metamorphic
Sedimentary
6: Quartz appears in igneous, metamorphic, and sedimentary rocks.
True
False
7: The three major classifications of ferromagnesian minerals are
pyroxines, feldspars, micas
olivines, dolomites, evaporites
olivines, pyroxenes, amphiboles
amphiboles, feldspars, basalts
8: Dolomite is a carbonate rock, with some of the calcium replaced by
aluminum
magnesium
potassium
sodium
9: Quartzite is...
an igneous rock
a metamorphic rock
a sedimentary rock
10: Evaporites form when water evaporates and leaves behind the dissolved minerals in the water.
True
False
11: Rocks from a volcanic eruption are
igneous
metamorphic
sedimentary
12: Calcite is known by the chemical formula CaCO3 (Calcium, Carbon, and 3 oxygens)
True
False
13: Rocks which become hard are said to be lithified.
True
False
14: Limestone is...
an igneous rock
a metamorphic rock
a sedimentary rock
15: The most common form of amphibole is
biotite
feldspar
hornblende
magnetite
16: Tuff is...
an igneous rock
a metamorphic rock
a sedimentary rock
17: Marble is...
an igneous rock
a metamorphic rock
a sedimentary rock
18: Igneous rocks only form on the surface of the earth.
True
False
19: Olivines form large, elongate crystals.
True
False
20: Clay minerals form at the earth's surface from the erosive actions of air and water upon silicate minerals.
True
False

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