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