How is concrete different from a conglomerate rock?

A. Concrete is human-made and conglomerate forms in nature.B. Concrete is grainy and conglomerate is smoothC. Concrete is solid and conglomerate is a sediment.

1

What is the first step in the formation of a detrital sedimentary rock?

B. Weathering and erosion of minerals & rocksC. Cementation of mineral grains and rock fragmentsD. Melting of mineral grains and rock fragments

2

Granite is a mixture of interlocked minerals formed from cooling magma. Granite is categorized as what type of rock?A. IgneousB. SedimentaryC. Metamorphic

3

A stream flows through a mountainous area and plucks off grains of granite along the way. The chunks of granite are carried by the stream until the flowing water can hold them no longer and they drop to the bottom of a deep pool. Which part of the rock cycle does this activity represent?

A. compaction and pressure to form new sedimentsB. Compaction and cementation to form new sedimentsC. Weathering and erosion of igneous rock to form new sediments

4

How do igneous rocks form?    a.   as water evaporates from a salty solution     b.   as molten material cools and solidifies   c.   as crystalline material melts    

5

Which type of rock forms as a result of volcanic activity?b.   Detrital c.   extrusive     d.   intrusive

6

What physical property of obsidian makes it useful as a tool?       b.   its glassy luster     c.   the way it fractures     d.   its streak

7

How are metamorphic rocks classified by texture?     a.   as foliated or nonfoliated     b.   as detrital or organic    c.   as heated or pressurized    

8

Select the BEST definition of a rock.   a.   a mixture of organic remains and synthetic materials   c.   a mixture of one or more minerals, mineraloids, glass, or organic materials     d.   a mixture of halite and calcite

9

Select the most common extrusive igneous rock.   b.   Chert c.   obsidian   d.   basalt

10

Which is true of intrusive rocks?     a.   They form as lava cools and solidifies above Earth's surface.     c.   They form as magma cools and solidifies below Earth's surface.     d.   They form as water wears away minerals on Earth's surface.

11

How can heat and pressure change the appearance of mineral grains during the formation of a metamorphic rock?   b.   They may weather to clay.     c.   They may flatten and line up.     d.   They may dissolve and form a geode.  

12

The white cliffs of Dover are composed of which rock type?     a.   extrusive igneousb.   organic sedimentary     c.   foliated metamorphic    

13

Which of the following statements is true about rocks forming from cooling magma?  a.   If an igneous rock contains emeralds, the grains will be small.b.   If the magma cools to form granite, the grains will be small.  d.   If the rate of cooling of magma is quick, the grains in the rock will be small.

14

Why are diamonds that are made in a laboratory not minerals?b.   because they do not have crystalline structuresc.   because they do not have carbon in themd.   because they did not occur in nature

15

What should one observe in a mineral sample that has cleavage?     a.   smooth, flat surfaces, shape  b.   a hardness less than 4 on the Mohs scale d.   jagged, uneven edges

16

What is the streak of a mineral?

a. the color of a metallic mineralc. the color of a mineral when it is powderedd. the color of unglazed porcelain

17

Why do minerals sometimes form when water evaporates in nature?a. The dissolved minerals in water become more concentrated and crystallize.b. he dissolved minerals in water become less concentrated and crystallize.c. The dissolved minerals in water cool down and begin to solidify.

18

What is the luster of a mineral?     a.   how it reflects light b.   how many shiny surfaces it has c.   how it appears when rubbed on unglazed porcelain

19

Some rocks that spires (also know as hoodoos) of Utah’s Bryce Canyon are made of limestone and sandstone. What type of rock is limestone and sandstone?

A. Igneous B. Metamorphic C. Sedimentary

20

Identify the crystals below as salt or epsom salt.

21

Identify the crystals below as salt or epsom salt.

22

Identify the names of the samples below and tell which one is a rock and which one is a mineral?

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Identify these samples as igneous, sedimentary, or metamorphic.

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1. Closely observe the photograph of the rock in the first column2. Read what happens to the rock in the second column. 3. Then determine the type of rock the sample becomes, igneous, sedimentary, or metamorphic and then circle4. the correct answer.

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33

Based on the samples shown below, choose the one that does not belong and tell the name of the sample. Next give two reasons why it does not belong.

AB

C D

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