Tasa Graphic Arts, Inc.
Tasa Graphic Arts, Inc.
1210B Salazar Road  -  Taos, NM USA 87571
Phone: (800) 293-2725 or (575) 758-5535  -  Fax: (575) 758-5536
E-mail:  info@tasagraphicarts.com


Igneous Rocks Worksheet

Back to The Wonders of Rocks and Minerals Worksheet information page


Lab Station #__________
Name_________________________________________
Directions:
Use the program on Rocks and Minerals to answer the questions below. After beginning the program, select IGNEOUS ROCKS from the Main Menu. Answer the questions as carefully as possible. Remember, when you are finished, it will be assumed that you understand the material that was covered in the program. If you have questions during the program, make sure you ask your teacher!

1.
How do igneous rocks form?

_____________________________________________________

2.
Why does magma float to the surface?

_____________________________________________________

3.
What object is used in the program to indicate the size of a volcanic bomb?

_____________________________________________________

4.
What are extrusive igneous rocks?

__________________________________________________

__________________________________________________

Igneous Rocks - Tasa Graphic Arts, Inc.
5.
What are intrusive igneous rocks?

__________________________________________________

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6.
In what state is the Grand Teton National Park?

_____________________________________________________

7.
What does the geologic term sill mean?

_____________________________________________________

8.
Click on the correct answer to review questions that appear next in the program.
Textures of Igneous Rocks
9.
What term is used to describe the size and arrangement of the crystals in an igneous rock?

_____________________________________________________

10.
What process has a great effect on this term?

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11.
What can be said of the texture of an igneous rock that cools at the surface of the earth?

_____________________________________________________

12.
What is the name of the rock sample picture with this description of texture?

_____________________________________________________
13.
Name a sample of a coarse-grained igneous rock.

_____________________________________________________

14.
What is the result of a rock that contains a non-orderly crystalline structure?

___________________________________________________

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Igneous Rocks - Tasa Graphic Arts, Inc.
15.
What igneous rock floats in water?

___________________________________________________

___________________________________________________

16.
Match the terms with their rock samples in the next section of the program.
Minerals in Igneous Rock
17.
Name 6 minerals commonly found in igneous rocks.

___________________________    ___________________________

___________________________    ___________________________

___________________________    ___________________________

18.
Light colored igneous rocks are rich in

__________________________ and __________________________.

19.
Dark colored igneous rocks have large amounts of

__________________________ and __________________________.

20.
In what state is Yosemite National Park located?

__________________________________________________

21.
Granitic rocks are normally found on the __________________________

while basaltic rocks are often located in the ________________________

beneath the _______________________.

22.
What are andesitic igneous rocks?            Where are they often found?

_____________________________________________________

_____________________________________________________

23.
Name three other volcanoes in the vicinity of Mt. Rainier.

_______________________________    _______________________________    _______________________________

24.
Answer the questions that are presented next in the program.
Igneous Rocks - Tasa Graphic Arts, Inc.
Naming Igneous Rocks
25.
What are the three categories of texture for igneous rocks?

_____________________    _____________________   _____________________

26.
Name a glass textured rock with medium color.

_____________________________________

27.
Using the descriptions at the bottom of the screen, click on the appropriate rocks.
You do not have to continue on to Sedimentary Rocks at this time.
Mineral Database app YouTube video
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