Chunky Iggy Rocks

All igneous rocks are formed from liquid rock known as __________? O Magma

The process of hardening rock is known as __________? O Solidification

Magma that extrudes above Earth’s surface is called __________? O Lava

Igneous rocks that cool on Earth’s surface are called __________? O Extrusive

Extrusive igneous rocks have a fine grained or glassy __________? O Texture

Igneous rocks that cool below Earth’s surface are called __________? O Intrusive

Igneous rocks that are light in color, lower in density and rich in Al and Si are said to have a __________ composition. O Felsic

Intrusive igneous rocks have a ______ grained texture. O Coarse

Igneous rocks with gas pockets are said to have a __________ texture. O Vesicular

Igneous rocks that are dark in color, high in density and rich in Fe and Mg are said to have a __________ composition. O Mafic

The slower magma cools, the ________ the crystals. O Larger

Another word for Extrusive is _____________. O Volcanic

An igneous rock with a glassy texture would mean that the rock cooled __________ Earth’s surface. O Above

An igneous rock with a vesicular texture would mean that the rock cooled __________ Earth’s surface. O Above

Another word for intrusive is _________________. O Plutonic

This igneous rock is felsic with a coarse texture. O Granite

Do intrusive igneous rocks ever have a vesicular texture? O No

What is the percentage of Biotite in Peridotite? O Zero

This is the only Felsic igneous rock that is black. O Obsidian

Olivine is found only in (Felsic, Mafic) igneous rocks. O Mafic

Place the numbers of these igneous rocks in descending crystal size. 1)Diorite, 2)Pegmatite, 3)Basalt O 2, 1, 3

The Earth’s oceanic crust is made up of this igneous rock. O Basalt

What is the origin and rate of formation? O Extrusive, fast