Molten Rock that flows under the Earth's surface

Cool and crystallize on the Earth's Surface

Both Ultrabasic and Kimberlites

Cool and crystallize under the Earth's Surface

Cooled and crystallized Lava and magma

What are veins when reffering to igneous rocks?

distinct sheetlike body of crystallized mineral within arock

Molten Rock that flows out on to the Earth's surface

Why are there almost no extrusive ultrabasic rocks in the Earth’s crust?

The temperature and pressure are not right

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Igneous Rocks

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Grade 9 Earth Science

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Questions 20

Answers

1
What is Magma?
Molten rock that flows anywhere
None of the above
Molten Rock that flows under the Earth's surface
Molten Rock that flows out on to the Earth's surface
2
In the Bowmen's Reaction Series, which mineral has the lowest silica content?
Olivine
Biotite mica
Amphibole
Pyroxine
3
Why can granite be carved in to monuments and not obsidian?
Obsidian is a harder material
Obsidian is a form of diamond
Obsidian breaks to easily
Obsidian is intrusive
4
Extrusive Rocks...
Cool and crystallize under the Earth's Surface
Have large crystals
Do not form crystals
Cool and crystallize on the Earth's Surface
5
Diamonds are...
pegmatites
Ultrabasic
Both Ultrabasic and Kimberlites
Kimberlites
6
When some minerals melt at relatively low temperatures while others remain solid is...
Partial Crystalization
Partial Melting
Boiling Point
Melting Point
7
Intrusive Rocks...
Cool and crystallize under the Earth's Surface
Do not form crystals
Have small crystals
Cool and crystallize on the Earth's Surface
8
Basaltic Rocks are light colored
True
False
9
Mineral composition does not affect magma formation.
False
True
10
Texture refers to....
All of the above
Size
Distribution of crystals
Shape
11
Igneous rocks are...
Cooled and crystallized Lava and magma
Cooled and crystalized magma
None of the above
Cooled and crystalized Lava
12
What are veins when reffering to igneous rocks?
A place where lava flows
A place where magma flows
distinct sheetlike body of crystallized mineral within arock
None of the above
13
Which has the largest crystals?
Extrusive Rocks
Intrusive Rocks
None of the above
Intermediate rocks
14
What is lava?
Molten Rock that flows out on to the Earth's surface
Molten Rock that flows under the Earth's surface
None of the above
Molten rock that flows anywhere
15
In order for the melting point to increase also needs to increase?
Density
Pressure
Temperature
Volume
16
The spongy appearance found on pumice is know as...
Porphyritic texture
Partial Texture
Rough Texture
Vesicular texture
17
Large, well-formed crystals surrounded by finer-grained crystals describes...
Intrusive Rocks
Porphyritic texture
Vesicular Texture
None of the above
18
Veins of large-grained minerals are known as....
Alectites
Kimberlites
Pegmatities
Susanites
19
Why are there almost no extrusive ultrabasic rocks in the Earth’s crust?
The mineral composition and pressure are not right
The pressure is not right
The temperature is not right
The temperature and pressure are not right
20
Granitic rocks contain mostly quartz.
False
True

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