Florida Gateway College
Earth Science/Dr.Kane
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Chapter 2 (Minerals)
HOMEWORK 2
/KEY - TERMS
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1. Open this link: Earth Revealed series and watch the Video #12 (Minerals The Materials of Earth)
2. Go to the Key terms page below, print out the page and answer the questions
3. Print out the test page below and answer the questions
4. Bring the package with you on test day to get credit. Homework counts for
25% of your final grade.
Please, research these keywords in your textbook, study guide, and other documents you may have. Pay
attention to the video, and take notes if you like, but you may not use them during the test. You will have 5
extra credit question on chapter 1 (Introduction to Earth Science) that counts for 20%.
MINERAL & ROCK (definition)
CRYSTALLINE STRUCTURE (definition)
SILICON-OXYGEN TETRAHEDRON (definition, composition, and role)
STEEL (what mineral is it made from?)
GLASS (what mineral is it made from?)
HALITE (definition and chemical composition)
QUARTZ (chemical composition)
PHYSICAL PROPERTIES OF MINERALS (name them)
CLEAVAGE (definition)
MUSCOVITE (its cleavage and luster)
FELDSPAR (its cleavage and luster)
LUSTER (definition)
PYRITE (its luster)
STREAK (definition)
ASBESTOS (What is it? Economic Importance, and environmental impact)
EVAPORITES (definition and mode of formation)
CALCITE (chemical composition)
THE MOST ABUNDANT MINEARL GROUP IS: ……
SILICATE MINERALS (name the building block of silicate minerals)
COMPUTER CHIPS what are they made of?
DIAMOND (chemical composition, hardness, and conditions of formation)
GRAPHITE & DIAMOND (compare origin and chemical composition)
METALLIC ORE DEPOSITS (how do metallic ore deposits form?)
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HOMEWORK/PRACTICE TEST
1 (Chapter 1: Minerals)
Circle the correct answer
1.
Name an object that is not made of minerals
a.
b.
c.
d.
e.
2.
Which of the following is NOT part of the definition of a mineral?
a.
b.
c.
d.
3.
Aluminum can
Plastic bottle
Steel frame
All of the above
None of the above
Possess a definite crystalline structure
Is formed by inorganic processes
Has a definite chemical composition
Can be either liquid or solid
The two most abundant element (by weight) on Earth's crust is
a.
b.
c.
d.
4.
5.
Crystalline structure is an orderly pattern in which atoms are arranged
a.
True _____________________
b.
False ____________________
Iron ore is mined to make
a.
b.
c.
d.
e.
6.
8.
9.
Plastic
Rubber
Copper wire
Steel
Glass
Rocks are aggregates of mineral grains
a.
True _________________
b.
False _________________
Minerals are used to classify rocks
a.
True _________________
b.
False _________________
Sodium (Na) and Chlorine(Cl) atoms bond together to form this mineral
a.
b.
c.
d.
e.
10.
Plastic
Rubber
Copper wire
Steel
None of the above
Quartz from sand grains is melted to make
a.
b.
c.
d.
e.
7.
Oxygen and silicon
Silicon and hydrogen
Calcium and oxygen
Sodium and carbon dioxide
Quartz
Calcite
Pyrite
Halite
None of the above
Don't let this mineral fool you, it's not gold!
a.
b.
c.
d.
e.
Quartz
Galena
Pyrite
Halite
Gypsum
11.
This mineral has no cleavage, it breaks like glass, it has fracture
a.
b.
c.
d.
e.
12.
13.
Cleavage is a tendency of a mineral to break along flat planes
a.
True _________________
b.
False _________________
This mineral has one direction cleavage, It opens up like a book
a.
b.
c.
d.
e.
14.
16.
Silicon and iron (Si and Fe)
Silicon and magnesium (Si and Mg)
Silicon and calcium (Si and Ca)
Silicon and sodium (Si and Na)
Silicon and oxygen (Si and O)
Luster is the way a mineral reflects light
a.
True __________________
b.
False _________________
This mineral has a glassy luster
a.
b.
c.
d.
e.
17.
Galena
Calcite
Halite
Muscovite (mica)
All of the above
Silicate minerals contain always these two elements
a.
b.
c.
d.
e.
15.
Calcite
Halite
Gypsum
Quartz
None of these
Feldspar
Galena
Muscovite
Pyrite
Hematite
This mineral has a dull luster
a.
b.
c.
d.
e.
Feldspar
Galena
Muscovite
Pyrite
Hematite
18.
This mineral has a metallic luster
a.
b.
c.
d.
e.
19.
Your home Insulation material, such as the sheetrock is made of this mineral
a.
b.
c.
d.
e.
20.
Quartz
Galena
Gypsum
Calcite
None of the above
The most abundant mineral group on Earth is the
a.
b.
c.
d.
24.
Pyrite
Calcite
Quartz
Halite
Non of the above
Just pour some hydrochloric acid on this carbonate mineral to identify it
a.
b.
c.
d.
e.
23.
Gypsum
Phosphate
Asbestos
Talc
None of these
This mineral that formed from Lake Water evaporation is called an evaporite
a.
b.
c.
d.
e.
22.
Quartz
Calcite
Gypsum
Talc
Halite
Exposure to high level concentration of this airborne mineral fiber can lead to lung cancer
a.
b.
c.
d.
e.
21.
Calcite
Gypsum
Galena
Halite
All of these
Carbonates
Phosphates
Silicates
Sulfides
Silicon is used to make
a.
b.
c.
d.
e.
Steel
Glass
Computer chips
Insulation
Solar panel
25.
Diamonds, girl's best friend, are made of the same chemical element as the pencil lead
a.
b.
c.
d.
e.
26.
The softest mineral on Mohs relative scale of hardness is
a.
b.
c.
d.
e.
27.
29.
30.
Quartz
Halite
Calcite
Talc
Fluorite
The hardest mineral on Mohs relative scale of hardness is
a.
b.
c.
d.
e.
28.
Silicon
Iron
Carbon
Lead
None of the above
Halite
Quartz
Topaz
Diamond
None of these
Graphite forms at high pressure conditions and great depth, near the mantle
a.
True _________________
b.
False _________________
Diamond forms at low-pressure conditions, near the earth surface
a.
True _________________
b.
False ________________
Metallic ore deposits form from special very hot waters derived from magma and called
a.
b.
c.
d.
e.
Meteoric waters
Spring waters
Hydrothermal waters
Oceanic waters
None of the above
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Extra Credit Questions (4% each, total 20%):
Please mark your answers at the back of the Scantron (Part II)
1
2.
What is the dual role Earth scientists play?
a.
Find resources and help protect the environment
b.
Help control the growth of world population
Geology means
a.
b.
c.
d.
3.
A tentative explanation of natural phenomena after careful observations is called a
a.
b.
c.
d.
e.
4.
Theory
Hypothesis
Pseudoscience
Paradigm
Al of the above
Earth processes are powered by two heat engines
a.
b.
c.
d.
e.
5.
Study of the Earth
Study of the solar system
Study of the universe
All of these
Sun and Moon
Sun and the atmosphere
Earth interior and the Sun
The oceans and the Sun
None of these
Earth science is
a.
b.
c.
d.
e.
Geology, oceanography, astronomy, gastronomy
Meteorology, geology, musicology, oceanography
Astronomy, geology, choreography, meteorology
Meteorology, geology, astronomy, oceanography
Oceanography, epidemiology, geology, astronomy
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