SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
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. A type of thermal spring which ejects water intermittently with considerable force.
geyser
sinkhole
fetch
cone of depression
2. 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.
ozone layer
hardpan
chlorofluorocarbons (CFC's)
ozone
3. 1. Breach in a natural levee . 2. Deep crevice or open fracture in glacier ice.
crater
shoreline
open pit mining
crevasse
4. A general term including both oil and natural gas.
geologic time scale
petroleum
eustatic change in sea level
compass
5. A large area with common features that set it apart from other areas.
rock cycle
divergent boundary
region
liquefaction
6. Similar to a groin but built to keep sand out of a harbor entrance.
geothermal energy
steppe
jetty
asteroid
7. The production of living matter by organisms that make food using sunlight or chemicals. Usually expressed as grams of carbon per square meter per year.
El Nino
primary productivity
Proxima Centauri
streak
8. A giant structure that contains hundreds of billions of stars.
galaxy
geyser
snow line
Mesozoic
9. A natural open space underground & large enough for a person to enter. Most commonly occur by the dissolution of soluble rocks & generally limestone.
deposition
quarrying
mid-ocean ridges
cave
10. Turbulent stream water flow down a steep gradient & but not as steep as in a waterfall.
erratic
boundary
fringing reef
rapids
11. Destruction of the ozone layer caused by the release of CFC's (chlorofluorocarbons) into the atmosphere which react chemically with ozone and break it down into different gases.
isostatic change in sea level
atoll
global warming
ozone depletion
12. A method of sediment transport in which the turbulence of a fluid is able to keep particles supported in the fluid.
geologic time scale
suspension
sand dune
escarpment
13. Heat extracted from the Earth for use as an power source.
geothermal energy
zone of aeration
continental rise
zone of aeration
14. A collection of maps.
magnetic pole
atlas
meander
drainage divide
15. The amount of material a stream carries in suspension.
suspended load
archaean
creep
igneous rock
16. A plate boundary in which plates on opposite sides of the boundary move past each other in opposite directions. The San Andreas fault of California is a good example.
dust devil
outer core
oxbow
transform boundary
17. A device containing a free-swinging magnetic needle that is attracted to Earth's magnetic North Pole. Used to determine direction of travel.
resources
glaciation
asthenosphere
compass
18. Water beneath the Earth's surface.
bedrock
ground water
cone of depression
black smoker
19. The low spot between two successive waves.
zone of leaching
sandstorm
wave trough
basin
20. The uprush of a wave onto the beach followed by the return flow of the water down the beach slope in the intervals between waves.
clastic
swash and back wash
current speed
rockslide (rock avalanche)
21. An instrument that detects & magnifies & and records vibrations of the Earth & especially earthquakes.
Milky Way
seismograph
casts
ground water
22. The science that deals with the study of the planet Earth--the materials of which it is made & the processes that act to change these materials from one form to another & and the history recorded by these materials; the forces acting to deform the ou
geology
isostasy
biogenic sedimentary rock
continental rise
23. The height of a place above sea level.
absolute time
s- wave (secondary wave & shear wave)
seismograph
elevation
24. Lava extruded beneath water characterized by pillow shapes.
telescope
ore
fold and thrust mountains
Pillow Lava
25. A rock that has crystallized from a molten state.
convection cell
igneous rock
equinox
suspended load
26. All of space and everything in it.
Precambrian
calving
climate
universe
27. The part of the crust that directly underlies the continents and continental shelves. Averages about 35 km in thickness & but may be over 70 km thick under largest mountain ranges.
crater
continental crust
back swamp
biogenic sediment
28. 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.
Proterozoic
stratification
black hole
Pillow Lava
29. A comet that passed Earth in 1997 and won't return to the inner solar system until the year 4377.
geologic time scale
Pelean eruption
magnetic equator
Hale-Bopp
30. The areas of & in & or constituting a city.
magnetic pole
continental crust
urban
swash and back wash
31. The chronological sequence of units of Earth time.
mid-ocean ridges
disintegration (mechanical weathering)
geologic time scale
lithification
32. The relationship between distances in the area being mapped and distances in the map itself.
flash flood
pipe
humus
scale
33. Deposits of wind-borne dust.
rock cycle
rapids
loess
equinox
34. The sudden fall of one or more large pieces of a rock from a cliff.
rockfall
rock
tidal delta
reef
35. A valley carved by glacier erosion and whose cross-valley profile has steep sides and a nearly flat floor & suggestive of a large letter 'you'.
nonfoliated
dust bowl
shoreline
you-shaped valley
36. A conical volcano formed by the accumulation of pyroclastic debris around a vent.
divergent boundary
viscosity
volcanic ash
cinder cone
37. The peak flow of water that tops the banks of a stream channel.
flood
Pangea
baseline study
breakwater
38. A system involving continuous interaction of the solid Earth & the atmosphere & the oceans and living things.
Earth system
ozone layer
granitic
vesicle
39. The arrangement of rock units in the proper chronological order from youngest to oldest.
rock
geologic column
oceanic trench
continental divide
40. Swamp that forms in the low lying flood plain behind a levee.
suspension
marine Chronometer
rainforest
back swamp
41. The sum of the processes that result in the wearing away or the progressive lowering of the Earth's surface by weathering & erosion & mass wasting & and transportation.
jetty
denudation
suspended load
basaltic
42. Glacial deposits laid down directly by glaciers or laid down in lakes & ocean & or streams as result of glacial activity.
cave
drift
sediment
spring
43. Ratio between weight of given volume of material and weight of equal volume of pure water.
humid
continental crust
isostasy
specific gravity
44. One of several rock-forming minerals that contain at least 95% silica (quartz). and usually one or more other common elements.
surf
archaean
silicate
mid-ocean ridges
45. Reduction of pore space between individual particles as the result of overlying sediments or of tectonic movements.
mineral deposit
kettle
compaction
primary productivity
46. The tendency of a moving object to continue in a straight line or a stationary object to remain in place.
ice shelf
barrier beaches
inertia
Mercury
47. A hole or basin cut into bedrock of a stream by the abrasive action of pebbles and sand swirled by turbulent stream flow.
basaltic
pothole
loess
barrier beaches
48. A comet that passed Earth in 1997 and won't return to the inner solar system until the year 4377.
water table
exotic river
continent
Hale-Bopp
49. The persistence of wind-formed waves after wind ceases.
lava lake
acid rain
landforms
swells
50. A measure of the strength of an earthquake based on the amount of movement recorded by a seismograph . compare Richter scale.
salinization
jetty
streak
magnitude