Metamorphic Rocks
Igneous Rocks
Classifying rocks
Living Coral
Vocabulary
100
Formed when an existing rock is changed by heat, pressure, or chemical reactions.
What are Metamorphic Rocks?
100
Forms from the cooling of molten rock - either magma below the surface or lava at the surface.
What are Igneous rocks?
100
Geologists observe the rocks color and texture and determine its mineral composition.
How do Geologists classify rocks?
100
They produce skeletons that grow together to form a skeleton.
What is a coral reef?
100
Forms when minerals that are dissolved in a solution crystallize.
What are chemical rocks?
200
Geologists _______ metamorphic rocks by the arrangement of the grains that make up the rock.
How do geologists classify rocks?
200
Fine-grained, coarse-grained, glassy, or porphyritic
What are the types of texture of a Igneous rock?
200
Rocks made up of particles of minerals or other rocks
What are grains?
200
When coral animals die, their skeletons remain, and more corals build on top of them.
What is the process of coral reefs forming?
200
Forms when the remains of plants and animals are deposited in thick layers
What are organic rocks?
300
Types of Metamorphic rocks: Marble and quartzite Hint( guess the type of metamorphic rock)
What are types of nonfoliated rocks
300
Igneous rock formed from lava that erupted onto Earth's surface
What are extrusive rocks?
300
Rocks: Igneous rocks, sedimentary rocks, and metamorphic rocks
What are three groups of rocks?
300
Limestone that began coral can be found on continents in places where uplift has raised ancient sea floors above sea levels.
What is the result of coral being buried by sediments?
300
a sedimentary rock that forms when rock fragments are squeezed together
What are clastic rocks?
400
This rock can form out of igneous rock, sedimentary rock, and other metamorphic rocks
What is metamorphic rock?
400
An igneous rock that is crushed to make gravel that is used in construction.
What is Basalt?
400
Atoll, barrier, and fringing
What are the three types of coral reefs?
400
The process that presses sediments together.
What is compaction?
500
Forms when limestone is subjected to heat and pressure deep beneath the surface
What is marble?
500
An igneous rock that is good for cleaning and polishing
What is Pumice?
500
Examples : can be smooth and rounded can be jagged
What are some examples of grain shapes?
500
Light penetrates the water for the algae to grow
Why are living coral animals only found in water that is les than 40 meters deep?
500
Metamorphic rocks that have their grains arranged in parallel layers or bands
What is foliated?
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