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WorksheetsRock Identification Practice
Total questions: 26
Worksheet time: 14mins
Name
Class
Date
1.
An example of an extrusive rock is:
a)
Formed inside Earth
b)
Formed outside Earth
2.
A lightly colored igneous rock is considered what?
a)
Mafic
b)
Felsic
3.
What process will form a sedimentary rock?
a)
Compaction and Cementation
b)
Heat and Erosion
4.
A sedimentary rock made up of pebbles exhibits what texture?
a)
Skeletal
b)
Cemented
5.
Peat is rock that contains visible plant particles. It is considered what texture?
a)
Clastic
b)
Skeletal
6.
A rock is formed from shells. It is considered what?
a)
Clastic
b)
Organic
7.
A metamorphic rock that is foliated means what?
a)
Visible banding/folding
b)
Recrystalized
8.
Is this metamorphic rock foliated or non foliated?
a)
Foliated
b)
Non foliated
9.
A metamorphic rock that exhibits a non - foliated texture has?
a)
Recrystalization
b)
Banding or Folding
10.
What process will form metamorphic rocks?
a)
Melting and cooling of magma or lava
b)
Heat and/or pressure
11.
What is magma?
a)
Melted rock on surface of Earth
b)
Melted rock inside of Earth
12.
Cooling and Hardening of magma deep underground results in a rock classified as
a)
Intrusive
b)
Extrusive
13.
What is the hardest known mineral?
a)
Diamond
b)
Talc
14.
What is the softest mineral on MOH's scale of hardness?
a)
Diamond
b)
Talc
15.
How hard is a penny on MOH's scale of hardness?
a)
2.5
b)
3.5
16.
How hard is a steel nail on MOH's scale of hardness?
a)
5.5
b)
6.5
17.
If a mineral leaves a dark streak it is which of the following?
a)
Metal
b)
Nonmetal
18.
If a mineral leaves light or no streak it is which of the following?
a)
Metal
b)
Nonmetal
19.
The powdered form of a mineral is
a)
Streak
b)
Color
20.
Which of the following is not a luster type?
a)
Glassy
b)
Pearly
c)
Greasy
d)
Salty
21.
Which one of the following is not a luster type?
a)
Waxy
b)
Glassy
c)
Sticky
d)
Dull
22.
Which of the following is FALSE:
a)
A mineral is non living
b)
A mineral is Solid
c)
A mineral has a crystalline structure
d)
A mineral can be man made
23.
If you can scratch a mineral with your nail, it must be
a)
Softer than your nail
b)
Harder than your nail
c)
Same hardness of your nail
24.
If a mineral can scratch glass, it must be
a)
Over 6.5
b)
Under 5.5
c)
Over 5.5
25.
A mineral that breaks into perfect cubes has
a)
Cleavage
b)
Fracture
26.
What is a rock?
a)
A crystallized mineral from the ground
b)
A mineral that hasn't crystallized properly
c)
Two or more minerals
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