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Study Island
Copyright © 2014 Edmentum - All rights reserved.
Generation Date: 12/09/2014
Generated By: Cheryl Shelton
Title: Grade 6 Blizzard Bag 2014-2015 Science -Day 4
1.
"Water seeps into rock cracks and dissolves minerals there. The solution travels through cracks
in the rocks, eventually concentrating into large crystals."
The process above is a description of _______.
A. mineral rock formation
B. mineral crystal formation
C. mineral metamorphosis
D. mineral crystal mining
2. Tim is given a rock sample by his teacher. He is also given the rock identification table below
and told that his rock is either quartzite, granite, limestone, or gneiss.
Rock Type
Texture
Quartzite nonfoliated
Mineral Composition Grain Size
quartz
medium
Granite
interlocking
feldspar
and quartz
coarse
Limestone
clastic
calcite
or dolomite
fine
Gneiss
foliated
feldspar
and quartz
coarse
If Tim determines that his rock's composition is pure quartz, which rock does he have?
A. limestone
B. quartzite
C. gneiss
D. granite
3. A science teacher who was teaching a unit on minerals modeled mineral formation for the
class. She heated granular sugar and a very small amount of water in a pan until the sugar
melted and boiled. After a few minutes, she poured the mixture out into a pan, and the mixture
took the shape of the pan and hardened. As it hardened, the sugar molecules in the mixture
formed crystals.
Minerals that might form in the igneous environment the teacher modeled include
A. calcite and epidote.
B. magnetite and quartz.
C. gypsum and feldspar.
D. halite and feldspar.
Hardness
Shape
Crystal
System
Color
Luster
Streak
Cleavage
Fracture
Specific
Gravity
Graphite
[C]
1
lamellar
veins to
earthy
masses
hexagonal
steel
gray
metallic
black
Yes
Yes-flaky
2.2
Talc
[Mg3Si4O10(OH)2]
1
Yes-basal
Yesuneven
2.7-2.8
Gypsum
[CaSO4· 2H2O]
2
tabular,
bladed or
blocky
white to
nonmonoclinic colorless
white
metallic
to gray
Yes
Yesuneven
2.3
Gold
[Au]
2.5
nuggets,
grains
golden
golden
metallic
yellow
yellow
No
Yes-jagged
19.3
golden
greenish
metallic
yellow
black
No
Yesconchoidal
5.1
colorless
to pale
yellows, nonYesYesisometric
white
browns metallic
octahedron conchoidal
and
grays
3.5
Mineral
Pyrite
[FeS2]
Diamond
[C]
6
10
flattened or
white to nonmonoclinic
white
tabular
green metallic
isometric
cube,
octahedron
isometric
and
pyritohedron
cube and
octahedron
4. Of the minerals on the decision chart above, which two can be white in color?
A. graphite and talc
B. diamond and graphite
C. talc and gypsum
D. pyrite and gold
Mineral
Hardness
Graphite
[C]
1
Talc
[Mg3Si4O10(OH)2]
1
Shape
Crystal
System
lamellar veins
to earthy
hexagonal
masses
flattened or
tabular
monoclinic
Color
Luster
Streak
Cleavage
Fracture
Specific
Gravity
steel
gray
metallic
black
Yes
Yes-flaky
2.2
Yes-basal
Yesuneven
2.7-2.8
Yes
Yesuneven
2.3
reddishbrown
No
Yesuneven
5.1
golden
greenish
metallic
yellow
black
No
white to nonwhite
green metallic
white to
tabular, bladed
nonmonoclinic colorless
white
or blocky
metallic
to gray
Gypsum
[CaSO4· 2H2O]
2
Hematite
[Fe2O3]
6
Pyrite
[FeS2]
6
cube,
octahedron and isometric
pyritohedron
Yesconchoidal
5.1
7
colorless
to
two
nonYes-weak
Yeshexagonal several
white
rhombohedrons
metallic
rhombohedral conchoidal
other
shades
2.65
Quartz
[SiO2]
tabular
hexagonal
steel
gray
metallic
5. If you find a pale gray mineral that you are able to scratch with your fingernail, which of the
following minerals are you most likely to be holding?
A. talc
B. hematite
C. pyrite
D. quartz
6. Which type of rock is created when lava cools and hardens?
A. cement
B. metamorphic
C. sedimentary
D. igneous
7. Sand on a beach is covered by other layers of sand over time. The extra layers compress the
first layer, packing it tighter and tighter. Over time, the bottom layers of sand have formed into
sandstone, with colored bands showing the different layers.
What kind of rock can sandstone be classified as?
A. volcanic rock
B. igneous rock
C. sedimentary rock
D. metamorphic rock
8. Which of the following rocks most likely resulted from compacting and cementing particles
together?
A. pumice
B. marble
C. sandstone
D. slate
9. Most rocks are
A. compounds made of minerals.
B. mixtures of minerals.
C. mixtures of cells.
D. compounds made of cells.
10. Which of the following are true statements about minerals?
I. Minerals are naturally occurring substances.
II. Each mineral has a specific chemical makeup.
III. Minerals can be solids, liquids, or gases.
IV. Rocks are made of minerals.
A. I, II, and IV only
B. II and IV only
C. I, II, III, and IV
D. I and II only
11. Juanita is modeling the formation of a certain type of mineral. She has dissolved a powder
in water and placed the mixture in a shallow dish. Now she will observe the mixture daily and
record what happens in the dish as the water evaporates. Which mineral's formation is Juanita
most likely modeling?
A. halite
B. quartz
C. magnetite
D. calcite
12. Mimi is given four rock samples by her teacher. She is also given the rock identification table
below and told that her rocks are obsidian, granite, limestone, and gneiss.
Rock Type
Texture
Mineral Composition Grain Size
Obsidian
glassy
felsic
very fine
Granite
interlocking
feldspar
and quartz
coarse
Limestone
clastic
calcite
or dolomite
fine
Gneiss
foliated
feldspar
and quartz
coarse
She examines each rock closely to determine its texture. Based on the information in the table,
which rock is most likely gneiss?
A. X
B. Y
C. W
D. Z
W.
X.
Y.
Z.