Name ______________________________ Class___________________Date__________________
Assessment
Section Quiz
Section: Igneous Rock
Write the letter of the correct answer in the space provided.
_____ 1. Which of the following are ways magma is formed?
a. by compaction and cementation
b. by melting and cooling
c. by changes in composition
d. by weathering and erosion
_____ 2. What kind of texture does igneous rock have when magma cools
slowly?
a. coarse-grained
b. large-grained
c. fine-grained
d. medium-grained
_____ 3. What kind of texture does igneous rock have when magma cools
rapidly?
a. coarse-grained
b. medium-grained
c. large-grained
d. fine-grained
_____ 4. What kind of rock is formed when magma intrudes into other rock?
a. extrusive igneous rock
b. sedimentary rock
c. intrusive igneous rock
d. organic sedimentary rock
_____ 5. What kind of rock is formed from lava that cools on the Earth’s
surface?
a. organic sedimentary rock
b. sedimentary rock
c. intrusive igneous rock
d. extrusive igneous rock
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Holt Science and Technology
50
Rocks: Mineral Mixtures