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Studying Earth's Minerals
Test Description: Unit 2 - Chapter 3 Review
Instructions: Answer all questions to get your test result.
1) What subatomic particles make up the atomic mass of an element?
A
electrons and neutrons.
B
protons and electrons.
C
protons and neutrons.
D
protons, neutrons, and electrons
2) What type of bond is created when electrons are transferred between atoms?
A
metallic
B
ionic
C
covalent
D
hydrogen
3) Minerals have
A
a large range in chemical composition, such as (Mg, Fe, Al, K, Na)2SiO4
B
no set chemical composition
C
a small range in chemical composition, such as (Mg, Fe)2SiO4
D
an exact chemical composition, such as SiO2.
4) Each mineral group has a distinctive chemical feature, such as
A
halides are a salt combined with a metallic atom.
B
sulfides are a metal combined with sulfur and oxygen.
C
phosphates are made of phosphate polygons
D
oxides are a metal combined with oxygen
5) The specific gravity of a mineral
A
compares its gravity to the gravity of water
B
compares its density to the density of water.
C
is a measure of its mass, the amount of matter in the mineral.
D
is a measure of its density, mass divided by volume
6) Streak is a more reliable property for identifying a mineral than color because
A
mineral colors vary, but their streak color does not.
B
a minerals color can change over time, but it's streak color does not
C
all minerals have streak.
D
streak and color are nearly always the same
7) If a rock is heated below the surface to more than 1,000oC it will
A
heat underground water to form vein deposits.
B
form geodes if there is space to do so.
C
form a metamorphic rock
D
create a magma
8) If pure water is evaporated, what is left behind is
A
nothing
B
calcium carbonate, like in tufa towers
C
only the mineral halite
D
the minerals halite, gypsum and other evaporites.
9) Recycling an aluminum can
A
is something other people should do
B
is not very valuable because aluminum is cheap
C
uses much less energy than creating useful aluminum from ore
D
is extremely energy intensive.
10) The environmental costs of mining
A
excess sediments clogging streams and lakes
B
b c
C
are minimal
D
potentially include pollutants entering streams and the soil.
*select an answer for all questions
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