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Definition
Vocabulary
22
Science
8th Grade
05/02/2011

Additional Science Flashcards

 


 

Cards

Term

Mantle

(Verb)

Definition

To spead or cover a surface, as a blush over the face.

[image]

Term

Tectonic plate

(noun)

Definition

The two sub-layers of the earth's crust

[image]

Term

Divergent boundary

(

Definition
[image]
Term

Rift Valley

(noun)

Definition
A subsea chasm extending along the crest of a mid-ocean ridge, locus of the magma upwellings that accompany seafloor spreading.[image]
Term

Absolute dating

(noun)

Definition
The determination of the age of an object with reference to a specific time scale[image]
Term

Uniformitarianism

(adjective)

Definition
supporting, conforming to, or derived from a theroy or doctrine about uniformity, especially on the subject of geology. [image]
Term

Renewable resource

(noun)

Definition
any natural resource that can replenish itself naturally over time, as wood or solar energy; also called renewable energy.[image]
Term

Crust

(noun)

Definition
the brown, hard outer portion or surface of a loaf or slice of bread.[image]
Term

Continental drift

(noun)

Definition
The lateral movement of continents resulting from the motion of crustal plates.[image]
Term

Fossil

(noun)

Definition
any remains, impression, or trace of a living thing of a former geologic age, as a skeleton, footprint.[image]
Term
Ice Core
Definition
[image]
Term

Lithosphere

(noun)

Definition
The rigid outer layer of the earth, having an average thickness of about 75 km and comprising the earth's crust and the solid part of the mantle above the asthenosphere.[image]
Term

Pangaea

(noun)

Definition
The hypothetical landmass that existed when all continents were joined, from about 300 to 200 million years ago.[image]
Term

Convergent boundary

(noun)

Definition
a major geologic discontinuity or suture marking the juncture of lithospheric plates that have been joined by plate tectonic.[image]
Term

Original remains

()

Definition
Term

Index fossil

(noun)

Definition
A widely distributed fossil, of narrow range in time, regarded as characteristic of a given geological formation, used especially in determining the age of related formations.[image]
Term
Geologic Time Scale
Definition
[image]
Term

Geothermal Energy

(noun)

Definition
form of energy obtained from within the earth, originating in its core; also, energy produced by extracting the earth's internal heat.[image]
Term

Asthenosphere

(noun)

Definition
The region below the lithosphere, variously estimated as being from fifty to several hundred miles (eighty-five to several hundred kilometers) thick, in which the rock is less rigid than that above and below but rigid enough to transmit transverse seismic waves.[image]
Term

Convection current

(noun)

Definition
The transfer of heat by the mass movement of heated particles into an area of cooler fluid.[image]
Term

Transform boundary

()

Definition
Term

Relative dating

(noun)

Definition
In archaeology, the arrangement of artifacts or events in a sequence relative to one another but without ties calendrically measured time; the arrangement of artifacts in a typological sequence or seriation. [image]
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