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Rock Cycle Assessment A
Part I: Multiple Choice
1. Which of the following is true about rocks?
A. Rocks are composed of only one mineral
B. Rocks do not contain any mineral matter
C. Coal is not a true rock
D. Most rocks are a mixture of minerals
2. Which of the following is not one of the three types of rocks?
A. Igneous
B. Sedimentary
C. Native
D. Metamorphic
3. All of the energy that drives Earth’s rock cycle comes from
A. The wind
B. Earth’s interior and the sun
C. The breakdown of organic matter
D. The movement of water over Earth’s surface
4. Metamorphic forms as a result of
A. Heat and pressure
B. The cooling of magma
C. Compaction of sediment
D. Melting of rock
5. The rock cycle includes all of the steps EXCEPT which of the following?
A. Magma or lava cools
B. Sediments melt deep beneath Earth’s surface
C. Extreme heat and pressure form metamorphic rocks
D. Rocks at Earth’s surface are broken down into smaller pieces
6. A rock that forms when magma hardens beneath Earth’s surface is called an
A. Intrusive metamorphic rock
B. Intrusive igneous rock
C. Extrusive sedimentary rock
D. Extrusive igneous rock
7. Which of the following is an example of an extrusive igneous rock?
A. Calcite
B. Granite
C. Andesite
D. Coal
Rock Cycle Assessment A
9. Lava that cools so quickly that ions do not have time to arrange themselves into crystals
will form igneous rocks with a
A. Fine-grained texture
B. Coarse-grained texture
C. Glassy texture
D. Porphyritic texture
10. A conglomerate is a rock that forms as a result of
A. Intense heat and pressure
B. Compaction and cementation
C. Rapid cooling
D. Slow cooling
11. Which of the following describes breccia?
A. A clastic sedimentary rock with angular particles
B. A clastic sedimentary rock with large, rounded particles
C. A chemical sedimentary rock
D. A biochemical sedimentary rock
12. Fossils are found only in
A. Intrusive igneous rocks
B. Extrusive igneous rocks
C. Sedimentary rocks
D. Metamorphic rocks
13. All rocks contain
A. Fossils
B. Large crystals
C. Minerals
D. Microscopic cleavage
14. Rocks are classified by
A. Origin
B. Color
C. Grain size
D. Mineral composition
15. Most metamorphic processes take place
A. Several hundred kilometers below Earth’s surface
B. A few kilometers below Earth’s surface
C. Just below Earth’s surface
D. On Earth’s surface
Rock Cycle Assessment A
The graph below shows the relationship between the cooling time of magma and the size of
the crystals produced.
16. Which graph to the right correctly shows the
relative positions of the igneous rocks granite,
rhyolite, and pumice?
A. 1
B. 2
C. 3
D. 4
17. Which characteristic provides the best evidence
that this pegmatite solidified deep underground?
A. low density
B. light color
C. felsic composition
D. very coarse texture
Part II: Short Answer
18. Compare and contrast intrusive and extrusive igneous rock.
19. Describe the process that could transform sedimentary rock into another sedimentary
rock.
20. How do coarse-grained igneous rocks form?
21. What is the major difference between igneous and metamorphic rocks?
22. Explain why fossils can only be found in sedimentary rocks and not in metamorphic or
igneous rocks.
Part III: Essay
23. Diagram and explain the rock cycle. Be sure to label each arrow.