Download Igneous Rock ID

Igneous Rock
ID
Virtual Lab
Page 98 ISN
Found Where?
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Igneous rocks are created from slowly
cooling magma under the surface or from
quickly cooling lava on the surface.
Formed How?
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Igneous rocks form when magma or lava
cools and becomes solid rock.
Characteristics
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Igneous rocks are classified into 2 groups:
1) Intrusive - formed deep within the
ground, large crystals are visible in rock.
2) Extrusive – formed near or at the surface,
small or no crystals are visible in rock.
1.
2.
3.
Draw a small
picture of the
rock in the
square.
Make two
observations
about the rock.
Is the rock
intrusive(you
see large
crystals) OR
Extrusive (tiny
crystals or no
crystals seen)
Igneous Rock #1
Granite - Intrusive
1.
2.
3.
Draw a small
picture of the
rock in the
square.
Make two
observations
about the rock.
Is the rock
intrusive(you
see large
crystals) OR
Extrusive (tiny
crystals or no
crystals seen)
Igneous Rock #2
Basalt - Extrusive
1.
2.
3.
Draw a small
picture of the
rock in the
square.
Make two
observations
about the rock.
Is the rock
intrusive(you
see large
crystals) OR
Extrusive (tiny
crystals or no
crystals seen)
Igneous Rock #3
Andesite Extrusive
1.
2.
3.
Draw a small
picture of the
rock in the
square.
Make two
observations
about the rock.
Is the rock
intrusive(you
see large
crystals) OR
Extrusive (tiny
crystals or no
crystals seen)
Igneous Rock #4
Gabbro - Intrusive
1.
2.
3.
Draw a small
picture of the
rock in the
square.
Make two
observations
about the rock.
Is the rock
intrusive(you
see large
crystals) OR
Extrusive (tiny
crystals or no
crystals seen)
Igneous Rock #5
Obsidian Extrusive
1.
2.
3.
Draw a small
picture of the
rock in the
square.
Make two
observations
about the rock.
Is the rock
intrusive(you
see large
crystals) OR
Extrusive (tiny
crystals or no
crystals seen)
Igneous Rock #6
Diorite - Extrusive