WorksheetsIgneous Rock Practice
Total questions: 16
Worksheet time: 9mins
Name
Class
Date
1.
A slow cooling igneous rock will have _____ crystals
a)
large
b)
small
c)
average
d)
black
2.
Which rock is underneath our oceans?
a)
Slate
b)
Granite
c)
Sandstone
d)
Basalt
3.
Igneous Rocks that form as magma cools underground are classified as
a)
extrusive rocks
b)
intrusive rocks
4.
How is Pumice used?
a)
countertops
b)
skin abrasive
c)
gravel
d)
weapons
5.
Which best describes how this rock formed
a)
slow cooling
b)
instant cooling
c)
medium cooling
d)
none of these
6.
Granite has large visible crystals so it must be
a)
Glassy
b)
Intrusive
c)
Extrusive
7.
Coarse or Fine?
a)
coarse
b)
fine
8.
High or Low Silica?
a)
high
b)
low
9.
High or Low Silica?
a)
high
b)
low
10.
What does Ignis mean?
a)
hot
b)
fire
c)
steam
d)
flame
11.
Describe this rock
a)
Intrusive , High Silica
b)
Intrusive , Low Silica
c)
Extrusive , High Silica
d)
Intrusive , Low Silica
12.
Coarse or Fine
a)
coarse
b)
fine
13.
Where can we find Basalt?
a)
mountains
b)
valleys
c)
deserts
d)
ocean floor
14.
Where do we find Granite?
a)
ocean floor
b)
deserts
c)
mountains
d)
valleys
15.
Igneous Rocks form by what process?
a)
Weathering
b)
Metamorphism
c)
Crystallization
d)
Evaporation
16.
How are igneous rocks classified
a)
by color alone
b)
by mineral composition and texture
c)
by the type of cement between crystals
d)
by the size of the rock itself
100 %
