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WorksheetsIgneous Rock
Total questions: 12
Worksheet time: 6mins
Name
Class
Date
1.
What is an igneous rock?
a)
rock that forms from magma & lava
b)
rock that forms from weathering and erosion
c)
rock that forms from weathering and compaction
d)
rock that forms from heat and pressure
2.
What does “igneous” mean?
a)
cooling
b)
Ice
c)
fire
d)
pressure
3.
How are igneous rocks classified?
a)
color, sharp edges, & mineral composition
b)
color, texture, & mineral composition
c)
Luster, texture, & mineral composition
d)
color, texture, & cooling temperature
4.
What is an extrusive rock formed from?
a)
lava ON Mars’ surface
b)
lava IN Earth’s surface
c)
lava ON Earth’s crust
d)
lava ON Earth’s surface
5.
What is the most common extrusive rock?
a)
Slate
b)
basalt
c)
coal
d)
sand
6.
Basalt forms much of the crust beneath what?
a)
ocean floor
b)
space
c)
soil
d)
mountains
7.
What is an intrusive rock formed from?
a)
water ON Earth’s surface
b)
weathering from other rocks
c)
lava ON Earth’s surface
d)
magma UNDER Earth’s surface
8.
What is the most common intrusive rock?
a)
granite
b)
coal
c)
sand
d)
clay
9.
What forms fine-grained (small crystals) igneous rocks?
a)
A person named crystal
b)
weathering by ice
c)
fast cooling lava
d)
slowly heated rocks
10.
What forms coarse-grained (large crystals) igneous rocks?
a)
fast cooling lava
b)
slow cooling magma
c)
weathering by ice
d)
erosion of sand
11.
What kind of texture do most intrusive rocks have? (2)
a)
coarse- grained
b)
fine grained
c)
diamond grade
d)
coal grade
12.
What kind of texture do most extrusive rocks have? (2)
a)
coarse- grained
b)
fine grained
c)
diamond grade
d)
coal grade
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