Igneous Rocks Answers

4 verified answers2 views
1
Free Preview

Granitic magma is very silica-rich.

A
T
B
F
2
Free Preview

Lava flowing from volcanoes in Hawaii is basaltic magma.

A
T
B
F
3

Please select the word from the list that best fits the definition rocks formed from molten material

A
igneous rocks
B
extrusive
C
intrusive
D
sedimentary
4

Please select the word from the list that best fits the definition

A
igneous rocks
B
extrusive
C
intrusive
D
lava
5

Granitic igneous rocks are all of the following EXCEPT ____.

A
light-colored
B
lower in density than basaltic rocks
C
high in silica content
D
high in iron content
6

Lava that cools quickly forms ____ rocks.

A
extrusive metamorphic
B
extrusive igneous
C
intrusive metamorphic
D
intrusive igneous
9

Which of the following is an example of extrusive rock that has cooled too quickly for grains to form?

A
Volcanic glass
B
Basaltic rock
C
Granitic rock
D
All of the above
10

The crystals that form in slowly cooling magma are generally ____.

A
nonexistent
B
invisible
C
tiny
D
large

Did you find these answers helpful?

Igneous Rocks Answers — LVA-Earth and Space…