Rock Types
These rocks form when magma or lava cools and crystallizes.
Igneous rocks
The breaking down of rock into smaller pieces.
Weathering
Weathering that breaks rock apart without changing its chemical composition.
mechanical weathering
This process moves weathered material.
Erosion
How many major types of rock are there?
3 (sedimentary, metamorphic, igneous)
These rocks form from compacted and cemented sediments.
sedimentary rocks
The movement of sediment from one location to another.
Erosion
Weathering that changes the chemical makeup of a rock.
chemical weathering
This process occurs when sediment is put down or dropped.
Deposition
Pieces of solid material produced by weathering are called this.
Sediment
These rocks form when existing rock is changed by heat and pressure.
metamorphic rocks
The process in which transported sediment is dropped in a new location.
Deposition
When oxygen reacts with iron in rock and produces rust.
oxidation
What must happen to rock before erosion can move it?
Weathering
These two forces change sedimentary rock into metamorphic rock.
Heat and Pressure
Fossils are most commonly found in this type of rock.
sedimentary rock
These two processes turn sediment into sedimentary rock.
compaction and cementation
This type of chemical weathering happens when carbon dioxide reacts with water.
carbonation
What happens to sediment during erosion?
It is moved from one place to another
Which is chemical weathering: abrasion, frost action, oxidation, or breaking rock with a hammer?
Oxidation
Ribbon-like or banded layers are commonly associated with this type of rock.
(foliated) metamorphic rock
What process changes metamorphic rock into magma?
Melting
Chemical weathering generally happens faster in this type of climate.
Warm, humid climates.
What type of rock can form after sediment is deposited, compacted, and cemented?
Sedimentary Rock
What type of weathering is acid rain?
Chemical weathering