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Science Earth & Space Test 6 Semester Exam

Terms in this set (45)

deep cracks that develop on the surface of a glacier
crevasses
main agent of chemical weathering
water
idea attempts to reconcile the Bible and evolution by claiming that God used evolution as the method of creation
theistic evolution
refers to a fossil organism found in strata that are supposedly too old or too young to contain that organism
anomaly
The process of modifying a smooth slope into a series of level, stair like steps
terracing
describes a fossil that extends through multiple strata
polystrate
large holes formed whom huge chunks of melting glacial ice lodge in washed-out sediments
kettles
The natural ridges formed when water flow causes sediments to drop along the edge of a river's channel
levees
thought to be a missing link in man's evolution but was later found to be the remains of a modern human
Cro-Magnon man
dune looks like a pyramid with several out-reaching arms
star dune
what event was probably directly responsible for laying down most of earth's sedimentary rock layers
Flood
supposed missing link between amphibians and reptiles
Seymouria
Regions of the earth's surface where limestone is exposed and abundant
karst region
technique evolutionist use to assign supposedly exact ages to rocks & fossils
radiometric dating
method of erosion involves planting alternating strips of different types of crops
strip-cropping
mass of foaming water formed when waves wash up onto a beach
surf
the material carried by a stream
to load
middles layer of the earth between the crust and core
mantle
2 main factors that determine the density of seawater
temperature
salinity
rocks formed when other types of rocks are cooked by heat and ressure
metamorphic rcks
uses underwater sound waves to determine the size, distance and direction of objects
sonar
idea that the natural laws in operation today have existed throughout Earths history
principle of uniformity
current made of seawater mixed with mud or silt and erode the ocean floor
turbidity current
oceanographic tool that is a highly maneuverable robot linked to a support ship by cables
ROV
substance that makes up most of the salt in the ocean
sodium chloride
any area of the sea that exceeds 6000 meters in depth
hadal zone
large waves created by underwater disturbances
tsunamis
oceanographic tool charts currents far beneath the surface and sends back accurate measurements of those currents
profiling float
huge muddy valley that cuts into the deep ocean floor
trench
circular coral reef island that grows around an underwater volcano
atoll
main factor that effects the color of the ocean floor
natural color
Why can icebergs float in seawater
They are less dense than seawater
underwater valley gives mid-ocean ridges the appearance having twin mountains
rift
an upward flowing current that occurs when land breeze pushes surfaces water away from the coast
upwelling
a device oceanographers use to measure the temperature at different levels and report them back to a surface ship
expendable bathythermograph
device has an open tube that is dropped to the sea floor to allow its weight to puncture sediment and bring it up sediment samples
gravity corer
wave that grows taller and stepper as it travels to shore and topples forward with a white crest
breaker
circular paths that ocean currents move in
gyres
weathering that involves the breaking or peeling away of rock into layers
exfoliation
the deepest known point in the sea
Challenger Deep
scientific term for the volume of the portion of the skull that includes the brain
cranial capacity
the very slow downslope movement of soil and rock fragments
soil creep
occurs when there is one high tide and one low tide each day
diurnal tide
top layer of soil which contains most of the organic substances and nutrients
topsoil
idea that the fittest and strongest organisms are most likely to survive and reproduce
natural selection
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