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Vocabulary 2
Test Description: 8th Grade Vocabulary
Instructions: Answer all questions to get your test result.
1) Law of Superposition
A
Number of protons and neutrons
B
The geologic principle that states that in horizontal layers of sedimentary rock, each layer is older than the layer above it
C
Destructive. When two plates move towards one another.
D
Unreactive gases found in group 18
2) Fault
A
A break in the earth's crust, found near tectonic plates
B
the process by which water on the ground surface enters the soil
C
Genetically modified organism made when DNA is removed from one organism and placed within the DNA of what can be a very diff
D
A state of matter that has no definite shape but has a definite volume.
3) Extinction
A
a type of rock that forms from the cooling of molten rock at or below the surface
B
Pollution that comes from a single identifiable site.
C
Describes a species that no longer has any known living individuals.
D
organisms that get energy by consuming other organisms (consumers)
4) Fossil Record
A
A mixture consisting of tiny particles that are intermediate in size. Is often cloudy. Example: Milk
B
Matter is not created nor destroyed in any chemical or physical change
C
All known information about fossils collected about fossils
D
Describes a species that no longer has any known living individuals.
5) Absolute Age
A
The age of a rock given as the number of years since the rock formed.
B
the amount of minerals in water, usually referring to the amount of calcium and magnesium
C
solid to gas
D
pH less than 7
6) Relative Age
A
A relationship between two organisms in which one organism benefits and the other is unaffected
B
A relationship between two organisms of different species where one benefits and the other is harmed
C
The age of a rock compared to the ages of rock layers. Example: Rock Layer B is older than Rock Layer A.
D
Number of protons and neutrons
7) gravity
A
the force that pulls all objects with mass toward one another
B
thin part of Earth's crust, made of basalt, more dense than continental crust
C
marks the beginning of winter, December 21
D
the part of the Earth facing away from the sun in a rotation
8) seafloor spreading
A
an increasing amount of visible light on the moon's surface, light on the right
B
broken sections of Earth's crust that drift slowly on the mantle
C
process that occurs where two plates move apart creating a mid-ocean ridge
D
type of boundary where two plates separate creating a mid-ocean ridge and new crust
9) Analogous structures
A
A sudden and widespread outbreak of a disease within a specific population group or area
B
An inherited mutation in an organism's DNA that provided an advantage for survival of a species.
C
Organisms that do not share a common ancestor yet have similar functions.
D
Responsibility for conserving and restoring the Earth's resources for future generations.
10) Aquifer
A
The average mass of the atoms of an element (protons and neutrons). Typically found at the bottom of the element square (ex:
B
An underground layer of rock that contains groundwater.
C
A specific source of pollution that can be identified.
D
A place where an old, eroded rock surface is in contact with a newer rock layer.
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