Weather or Not
Water Please
Feeling Shakey
How Old?
Since the Beginning
100
chemical and physical breakdown of rocks; due to air, moisture, and living organisms.
What is weathering.
100
This describes the movement of water throught the earth's reservoir.
What is hydrologic cycle.
100
Sudden motion in the earth casused by abrupt release of slowly accumulated energy.
What is earthquake.
100
The science of rock layers and the process by which strata are formed.
What is stratigraphy.
100
The study of fossils and the record of ancient life on earth, in addition to the use of fossils in determining relative ages.
What is paleontology.
200
The wearing away of bedrock and the transporting of loose particles by fluids, like water.
What is erosion.
200
Precipitation that drains over the land or in stream channels.
What is surface runoff.
200
An elastic wave thta trabels outward in all directions from an earthquake's source.
What is seismic wave.
200
The age of a rock layer, fossil or natural feature relative to another feature.
What is relative age.
200
Method of equating the ages of strata that come from two or more different places.
What is correlation.
300
A loose layer of broken rock and mineral fragments covering most of earth's surface.
What is regolith.
300
Process of water working its way into the ground through small openings in the soil.
What is infiltration.
300
Point of the earth's surface directly above the earthquake's focus.
What is epicenter.
300
The age when a rock layer or natural feature eas formed, in the years befor the present.
What is numerical age.
300
The use of naturally occuring radioactive isotopes to determine the numerical ages of minerals, rocks, and fossils.
What is radiometric dating.
400
Sediment that is carried in suspension by a flowing stream of water or wind.
What is suspened load.
400
The top surface of the saturated zone.
What is water table.
400
Force acting on a surface, per unit area, which may be greater in certain directions than others.
What is stress.
400
The succession of strata, fitted together in relative chronological order.
What is geologic column.
400
The time needed for half the parent atoms of a radioactive substance to decay into daughter atoms.
What is half-life.
500
The downslope movement of regolith and/or bedrock masses due to the pull of gravity.
What is mass wasting.
500
replenishment of ground water.
What is recharge.
500
A permanent change in shape or volume, in which a material breaks or cracks.
What is brittle deformation.
500
The process where an element spontaneously transforms itslef into another isotope of the same element, or into a different element.
What is radioactivity
500
Consists of the Cenozoic Era, Mesozoic Era, and Paleozoic Era.
What is the Precambrian Period.
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