Download Worksheet Section 13.1

Name
Class
Date
13.1 Minerals and Rocks
What Are Minerals?
For Questions 1–5, write True if the statement is true. If the statement is false, replace
the underline word or words to make it true. Write your changes on the line.
1. Geologists have so far identified about 1000 minerals.
2. Minerals are formed from inorganic materials.
3. Each type of mineral has a unique crystal structure.
4. Most minerals are compounds composed of one element(s).
5. List the five criteria a material must meet to be considered a mineral.
6. Describe the proportion of elements in minerals that contain more than one element.
7. Name a mineral that is made of only one element.
Mineral Formation
8.
Fill in the table with a description of the ways that minerals
can form.
Ways That Minerals
Can Form
Crystallization from
magma or lava
Precipitation
Pressure and
temperature
Description
Produced by
organisms
9. What factor affects the size of the crystals in minerals that form from magma or lava?
Explain your answer.
10. What is a vein, and how does it form?
11. Name an example of a mineral formed by an organism.
Rocks
For Questions 12–14, circle the letter of the correct answer.
12. Rock that forms as magma cools slowly and solidifies below Earth’s surface is called
A. intrusive igneous rock.
B. extrusive igneous rock.
C. clastic sedimentary rock.
D. chemical sedimentary rock.
13. Which of the following is NOT a factor in the formation of metamorphic rock?
A. deposition
C. recrystallization
B. high pressure
D. high temperature
14. An example of metamorphic rock is
A. shale.
C. marble.
B. basalt.
D. limestone.
15. What causes rocks to move, and how does that movement relate to the rock cycle?
16. Describe how sedimentary rocks are formed.