About 20 minerals make up most of the rocks of Earth's crust.
Example:Granite is made up of 4 diffrent minerals.
What is rock-forming minerals?
100
Magma that is high in silica ussually forms light colored rocks.
*Example: Granite
What is the mineral composition's affect on a rock's color?
100
The process by which sediment settles out of water or wind carrying it.
What is deposition?
100
Calcite
What is the mineral made up of the coral reef?
100
A series of processes on Earth's surface and in the crust and mantle that slowly change rocks from one kind to another.
What is the rock cycle?
200
Grains that are large and easy to identify.
Example:Diorite
What is coarsed-grained?
200
* Origin
* Texture
* Mineral Composition
What is the classification of igneous rocks?
200
It starts with the remains of swamp plants buried in water. As layers build up the weight of the layers compacts the decaying plants. Over a very long period of time, they slowly change to coal.
What is the process of coal formation?
200
-Hawii
-Floridia
What are two U.S. areas that contain coral reefs?
200
Plate movements and motions help form sedimentary and metamorphic rocks.
What is the of plate tectonics in the rock cycle?
300
* Mineral Composition
* Color
* Texture
What are the three characteristics that geologist use to identify rocks?
300
Granite
*Hint: Granite materials
What is the igneous rock that is most often used as a building material?
300
The small solid peices of rock that come from rocks or living things.
What is sediment?
300
*Trorical Areas
*Shallow Areas
What is the conditions that are essential for coral reefs to survive?
300
When volcanic activity make igneous rock it erodes into sediment.
What is the process that leads to the formation of sediment?
400
* Igneous Rock
* Sedimentary Rock
* Metamorphic Rock
What are the three main groups of rocks?
400
Igneous Rocks:
*Hard
*Dense
*Durable
What are the chacteristics that make igneous rocks useful?
400
From the Greek words:
*meta-change
*morphosis-form
What is meaning of the word "metamorphic"?
400
The skeletons of coral animals build up and fuse together forming a coral reef.
What is the process of coral reefs?
400
The collision of plates can also push downward so that it will go towards the mantle which has heat and changes rock into metamorphic rock.
What is the plate movements job so it will help form metamorphic rock?
500
It gives its rock its texture.
It consists rocks that are made up of particles of minerals or other rocks.
What are the grains of rock?
500
Lava that has cooled on Earth's surface.
*Rhyolite
*Basalt
Magma hardened beneath Earth's surface.
*Pegmatite
*Porphyry
What are extrusive and intrusive rocks?
500
-Building
-Sculptures
What is the main use of metamorphic rock?
500
Limestone
What is the type of rock that is formed frome ancient coral?
500
-Builds
-Destroys
-Changes
What is the forces deep inside Earth do to rocks in Earth's crust?