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Test your basic knowledge |
Earth Science
Start Test
Study First
Subject
:
science
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. The breaking away of ice from the front of the glacier when it ends in a lake or an ocean. Produces icebergs.
rift (graben)
pathogen
metamorphic rock
calving
2. Long narrow beaches separated in many places from the mainland by lagoons.
epoch
barrier beaches
density
base
3. The very slow & generally continuous downslope movement of soil and debris under the influence of gravity.
strip mining
creep
mineral deposit
drought
4. The process by which an unconsolidated deposit of sediments is converted in to solid rock.
lithification
universe
Hale-Bopp
Proxima Centauri
5. Deposition of fine mineral particles (silt) on the beds of streams or lakes.
Hadean
siltation
oxbow lake
hemisphere
6. A large area of flat or nearly flat land.
nebula
plain
acid rain
hydrologic cycle
7. An atmospheric shield providing the Earth with protection from ultra-violet rays which can cause sun burn & skin cancer and the destruction of the delicate plant life which supports the planet's food chain.
streak
ozone layer
hemisphere
chalk
8. The portion of the continental margin that extends as a gently sloping surface from the shoreline seaward to a marked change in slope at the top of the continental slope . Seaward depth averages about 130 m.
continental shelf
stalagmite
oxbow lake
tectonic Plates
9. Elongated rises on the ocean floor where basalt periodically erupts & forming new oceanic crust.
observator
mid-ocean ridges
meteoroid
triangulation
10. The geologic eon lying between the Archean and Phanerozoic eons & beginning about 2.5 billion years ago and ending about 0.57 billion years ago.
groin
hardness
basaltic
Proterozoic
11. Where two plates collide to form mountains.
salinity
Earth
plate boundaries
collisional Boundary
12. An informal term to include all geologic time from the beginning of the Earth to the beginning of the Cambrian period 570 million years ago.
Precambrian
ecosystem
stalactite
erratic
13. Distance over which wave-forming winds blow.
fetch
black smoker
groove
seismic gap
14. A segment of an active fault zone that has not experienced a major earthquake during a time period when most other segments of the zone have. They are generally regarded as having a higher potential for future earthquakes.
seismic gap
lava lake
terrestrial
escarpment
15. The method of locating an epicenter by determining how far it lies from three widely separated seismographs.
triangulation
specific gravity
pyroclastic
continental divide
16. The chronological sequence of units of Earth time.
geologic time scale
fluctuate
volcano
constellation
17. A small ice sheet.
icecap
fringing reef
lithosphere
hydrologic cycle
18. 1. Breach in a natural levee . 2. Deep crevice or open fracture in glacier ice.
magnetic polarity
isthmus
crevasse
you-shaped valley
19. The acidity in rain due to gases from internal combustion engines and coal- and oil-burning power plants.
bar
plate boundaries
acid rain
swash and back wash
20. The elevation at which snow persists throughout the year.
decomposition (chemical weathering)
boundary
streak
snow line
21. An area subject to dust storms & especially south central United States .
atoll
dust devil
stalactite
dust bowl
22. Deep steep-sided depression in the ocean floor caused by the subduction of oceanic crust beneath either other oceanic crust or continental crust.
magma
scientific model
oceanic trench
lava lake
23. Till deposited from main body of glacier during ablation.
ground moraine
isthmus
precipitation
solstice
24. A rigid segment of the Earth's lithosphere that moves horizontally and adjoins other plates along zones of seismic activity. Plates may include portions of both continents and ocean basins.
plate
rain shadow deserts
creep
wind farm
25. A continuous well-defined mass of material of sufficient ore content to make extraction economically feasible. compare mineral deposit.
Laurasia
cave
ore deposit
rock
26. Property possessed by certain rocks of breaking with relative ease along parallel planes or nearly parallel surfaces in their crystal structures where the bonds are weakest.
cave
cleavage
ozone
mesosphere
27. Pertaining to or composed of granite & a coarse-grained igneous rock dominated by light-colored minerals & consisting of about 50 percent orthoclase & 25 percent quartz & and balance of feldspars and ferromagnesian silicates. Granite is commonly foun
sinkhole
silicate
granitic
transcontinental
28. A measure of the size of an earthquake in terms of the damage it causes.
pH
intensity
siltation
gemstone
29. The green pigment in the cells of many plants that enables them to use sunlight to convert carbon dioxide and water into carbohydrates in the process called photosynthesis.
Pillow Lava
suspension
breakwater
chlorophyll
30. The height of a place above sea level.
elevation
subduction zone
foliated
conduction
31. An imaginary circle around the earth that represents the halfway mark between the North and South Poles and establishes the boundary between the Northern and Southern Hemispheres.
equinox
hot spot
wave crest
equator
32. A ball of ice and dust & whose orbit is a long & narrow ellipse.
isthmus
comet
outcrop
quarrying
33. The outermost part of the core. It is liquid & about 1 &700 km thick & and separated from the inner & solid core by a transition zone about 565 km thick.
till (unstratified drift)
you-shaped valley
outer core
biogenic sedimentary rock
34. A mass of ice & formed by the recrystallization of snow & that flows forward & or has flowed at some time in the past.
glacier
arch
vesicle
continental divide
35. The presence of layers in some rocks caused by parallel alignment of minerals.
Prime Meridian
foliated
axis
storm surge
36. Any object that revolves around another object in space.
El Nino
plutonic
mesosphere
satellite
37. An aggregate of one or more minerals in varying proportions.
rock
oxbow lake
suspended load
lithification
38. Rock formed from the accumulation of sediment & Which may consist of fragments and mineral grains of varying sizes from pre-existing rocks & remains or products of animals and plants & the products of chemical action & or mixtures of these.
atoll
chlorofluorocarbons (CFC's)
sedimentary rock
water table
39. A layer of sedimentary rock; plural is strata.
lava flood (plateau basalt)
Copernicus & Nicholas
collisional Boundary
stratum
40. A measure of the strength of an earthquake based on the amount of movement recorded by a seismograph . compare Richter scale.
magnitude
scale
fossil fuel
salinity
41. A measure of acidity.
habitat
crater
archaean
pH
42. A division of geologic time next smaller than the eon and larger than a period. Example: The Paleozoic era is in the Phanerozoic eon and includes & among others & the Devonian period.
asteroid
era
seismology
thrust fault
43. An icicle-shaped accumulation of dripstone hanging from cave roof.
Paleozoic
seismic gap
stalactite
tidal inlet
44. Refers to rock or sediments made up primarily of broken fragments of pre-existing rocks or minerals.
era
estuary
clastic
ice shelf
45. The tectonic region in which two plates meet.
urban
boundary
crevasse
glacier
46. A device containing a free-swinging magnetic needle that is attracted to Earth's magnetic North Pole. Used to determine direction of travel.
triangulation
geology
compass
back swamp
47. A commonly used measure of earthquake magnitude & based on a logarithmic scale. Each integral step on the scale represents a tenfold increase in the extent of ground shaking & as recorded on a seismograph.
humus
Richter scale
pathogen
black hole
48. The vertical distance between the crest and adjacent trough of a wave.
wave height
renewable resources
p- wave (primary wave & compressional wave)
snow line
49. The point on the Earth's surface that is directly above the focus of an earthquake.
Proxima Centauri
landforms
epicenter
metamorphic rock
50. The precipitation that runs directly off the surface to stream or body of standing water.
sedimentary rock
deposition
runoff
watershed