Show:
Classifying Rocks
How Rocks Form
Sedimentary Rocks
Metamorphic Rocks
Rock Cycle/Reefs
100
What are rocks made up of?
Minerals
100
What are the three major groups of rocks?
igneous, sedimentary, metamorphic
100
The process that carries away sediment by wind, water, or ice.
erosion
100
Metamorphic rock means....
change form.
100
What process does igneous rock have to go through to become magma?
melting
200
__?__ is the look or feel of a rock's surface.
Texture
200
This group of rocks forms from lava or magma.
igneous
200
The processes by which sediment settles out of wind and water AND when they are pressed together.
Deposition and Compaction
200
What two things can change ANY rock into metamorphic rock (deep beneath the Earth's surface)?
heat and pressure
200
What process does sedimentary and igenous rock have to go through to become metamorphic rock?
heat and pressure
300
These give a rock its texture.
Grains
300
An igneous rock that is formed ON TOP of Earth's surface is called....
extrusive.
300
What happens during the process of cementation?
Minerals dissolve and "glue" the sediment together to make sedimentary rock.
300
How can a rock be pushed down beneath the Earth's surface towards the heat of the mantle?
When Earth's plates collide.
300
What processes does metamorphic rock have to go through to become igneous rock?
melting and cooling
400
A grain that is large and can be easily seen by the plain eye is called...
course-grained
400
What size are the crystals of INTRUSIVE rocks?
large crystals
400
What are the three major groups of SEDIMENTARY rock?
clastic, organic, and chemical rocks
400
Metamorphic rocks that have their grains arranged in parallel lines are called...
foliated rock.
400
Technically, coral reef is a type of _?_ rock.
sedimentary
500
"Rounded" and jagged describes this texture and "swirling, banded, and non-banded" describes this texture.
Grain Shapes and Grain Pattern
500
An igneous rock whose texture contains both course-grained and fine-grained crystals.
porphyry
500
Which rock can be classified as BOTH organic and chemical? What mineral does this rock contain?
Limestone; calcite
500
The foliated rock slate was once...
shale.
500
Coral reef is a structure of calcite skeletons built up by _?_ in warm, shallow water.
coral animals