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Earth Science Review

Name __________________________________
Across
Till deposited at the edges of a glacier forms a ______.
Rock formed from molten rock.
An icicle-like structure hanging down from the ceiling of a cavern.
Basic building block of rocks.
When the formation in a cavern is from the floor all the way to the ceiling.
Most sediment is laid down by _________.
A cavern is caused by erosion due to _________.
Point on the Earth's surface above where the earthquake is triggered is called the ______.
The view that most of earth's geological features are the result of slow, gradual processes that have been at work for millions or even billions of years.
Another cause of weathering and erosion.
___________ weather - breaking down rocks in sediments with a different chemical composition from the original rock.
Usually a combination of two or more minerals
Sediment deposits carried to the end of a river can form this.
There is only an unconformity when there is clear evidence of __________.
The layer of rock that forms Earth's outer layer is the ____.
Type of rock formed from sediments of sand, silt, minerals, and other components of soil.
Topmost layer that is rich in humus.
Distance north or south of the equator is measured using _____.
Down
A vein of igneous rock that runs perpendicular to the strata.
The decayed remains of once-living creatures that forms rich organic material in soil is called _____.
Molten rock.
Main cause of erosion and weathering.
Layer of the atmosphere that blocks uv radiation.
Structure that rises from the floor of a cavern.
__________ change can cause physical weathering.
Minerals are ______ substances.
Intrusions are a result of __________ activity.
Usually with a sharp, geometric shape of a mineral.
A surface of erosion that separates one layer of rock from another.
A sleeping volcano is called _____.
The distance in degrees east or west of the Prime Meridian.
The hardness of a mineral is determined by a _____ test.
Rock that has undergone change, usually due to heat and/or pressure.
Inorganic crystalline substances found naturally in the earth.
Cavern formations are formed by the deposit of __________.
Layers of rock.
A vein of igneous rock that runs in the same direction as the strata.