Classifying Rocks
Igneous Rocks
Sedimentary Rocks
Metamorphic Rock
Rock Cycle/Coral Reefs
100
The look and feel of a rock's surface.
What is texture?
100
The meaning of the word igneous.
What is "fire"?
100
Small solid particles of materials that come from rocks and living things.
What is sediment?
100
Metamorphic means this.
What is to change form?
100
The part of the Earth that is changed and produces the rock cycle.
What is the crust?
200
Large, easy to see rock grains are also called this.
What is coarse-grained?
200
The most common type of extrusive rock.
What is basalt?
200
The process by which little pieces of rock and living things settles our of the water or wind carrying it.
What is deposition?
200
Metamorphic rock that is banded.
What is foliated?
200
When one of Earth's plates is pushed below another of Earth's plates.
What is subduction?
300
Small grained rocks in which the grains can only be seen with a microscope are also called this.
What is fine-grained?
300
The most common intrusive rock.
What is granite?
300
A sedimentary rock that forms when rock fragments are squeezed together.
What is clastic rock?
300
The two causes of the formation of metamorphic rock.
What is heat and pressure?
300
What a coral reef is composed of.
What is skeletons of coral animals?
400
Geologists often use this tool to determine the rock's mineral composition.
What is a microscope?
400
A rock with large crystals scattered on a background of much smaller crystals have this type of texture.
What is porphyritic?
400
Rock which forms where the remains of plants and animals are deposited in thick layers.
What is organic rock?
400
How scientists classify metamorphic rock.
What is by the arrangement of their grains?
400
The environment in which a coral reef may form.
What is warm, shallow, ocean water?
500
The three major rock groups derive there name from this.
What is how they were formed?
500
The three ways that igneous rocks are classified.
What is origin, texture, and mineral composition?
500
Forms when minerals that are dissolved in a solution crystallize.
What is chemical rock?
500
The two most useful metamorphic rocks.
What are marble and slate?
500
A ring-shaped coral island found far from land.
What is an atoll?
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