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Test

Igneous Rocks

For each question below, click on the circle next to the correct answer. When you are finished with the test, push the 'Score my test' button at the bottom of the page. Good luck!

 

Question #1
The parent material for all rocks is

A. silica
B. quartz
C. granite
D. magma

 

Question #2
Which of the following types of rock is produced by magma that cools deep below the earth's crust?

A. extrusive igneous
B. intrusive igneous
C. foliated metamorphic
D. chemical sedimentary

 

Question #3
Which of the following is an igneous rock?

A. limestone
B. gypsum
C. gneiss
D. basalt

 

Question #4
The size and arrangement of crystal grains in igneous rocks is called

A. density
B. texture
C. hardness
D. luster

 

Question #5
An igneous rock with a mixture of large and small grians is

A. a porphyry
B. an intrusion
C. an extrusion
D. a breccia

 

Question #6
Magma that cools deep below the earth's crust forms what type of rock?

A. clastic
B. intrusive
C. stratified
D. extrusive

 

Question #7
The texture of igneous rock is determined by the rate at which magma

A. flows from a volcano
B. cools
C. melts
D. compresses

 

Question #8
A black, glass-like igneous rock which cools quickly preventing crystals to form is

A. basalt
B. granite
C. obsidian
D. slate

 

Question #9
The term "igneous " means

A. fire-formed
B. to change
C. to become layered
D. dark colored

 

Question #10
An example of an igneous rock which floats on water is

A. scoria
B. pumice
C. gabbro
D. basalt

 

 

This test was made with free online software from Merex Corporation.