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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. A zone in the Earth between 400 and 670 km below the surface separating the upper mantle from the lower mantle.
mesosphere
chlorofluorocarbons (CFC's)
black smoker
boundary
2. A delta formed at both sides of a tidal inlet.
orogeny
convection
universe
tidal delta
3. The two days of the year on which the noon sun is directly overhead at either 23.5
solstice
meteoroid
fossil fuel
Pangea
4. Similar to a groin but built to keep sand out of a harbor entrance.
dust devil
jetty
loess
equinox
5. A molecule composed of three atoms of oxygen and mostly found in the stratosphere. Though beneficial in the upper atmosphere & at ground level & ozone is called photochemical smog & and is a respiratory irritant and considered a pollutant.
isostatic change in sea level
ozone
plate boundaries
basaltic
6. A stone or boulder & glacially transported from place of origin and left in an area of different bedrock composition.
greenhouse gases
compass Rose
solstice
erratic
7. A thick layer of soil.
reserves
sod
resources
fissure eruption
8. The top of a wave.
magnetic equator
universe
wave crest
comet
9. 1. Breach in a natural levee . 2. Deep crevice or open fracture in glacier ice.
Precambrian
crevasse
inner core
constellation
10. Water that flows across watersheds during and immediately after severe rainstorms. In populated areas & stormwater runoff is often water that cannot be handled by existing sewer systems. Stormwater runoff is the leading source of water pollution in t
lava dome
convection
Hadean
stormwater runoff
11. The reserves of a valuable mineral commodity plus all other mineral deposits that may eventually become available & even those that are presumed to exist but have not yet been discovered and those that are not economically or technologically exploita
deposition
glacier
cartographer
resources
12. A general term for a relatively hard layer of soil at or just below the ground surface & cemented by silica & iron oxide & calcium carbonate & or organic matter.
volcanic
granitic
hardpan
basin
13. A narrow & elongate region in which one lithospheric plate descends relative to another.
subduction zone
nova -- (Supernova)
dust bowl
aftershock
14. Any accumulation of material & by settling from water or air & chemical precipitation & evaporation from solution & etc.
thrust fault
deposition
meteoroid
humid
15. A glaciated valley now flooded by the sea.
habitat
fjord
Cenozoic
Pelean eruption
16. A hole or basin cut into bedrock of a stream by the abrasive action of pebbles and sand swirled by turbulent stream flow.
cone of depression
Uranus
pothole
solar system
17. A landscape that develops from the action of ground water in areas of easily soluble rocks. It is usually characterized by caves & underground drainage and sinkholes.
atlas
p- wave (primary wave & compressional wave)
karst
escarpment
18. Glacial drift composed of rock fragments that range from clay to boulder size and randomly arranged without bedding.
magnetic pole
till (unstratified drift)
Sun
natural resources
19. A division of geologic time next shorter than a period. Example: the Pleistocene epoch is in the Quaternary period.
seismic sea wave (tsunami)
epoch
dust devil
seastack
20. The precipitation that runs directly off the surface to stream or body of standing water.
isostasy
runoff
mid-ocean ridges
arch
21. A process of erosion in which wind carries off particles of dust and sand.
deflation
groove
seismic gap
outcrop
22. 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.
biogenic sedimentary rock
Precambrian
aquifer
tidal inlet
23. As applied to glacier ice & the process by which ice below the snow line is wasted by evaporation and melting.
pH
ablation
seismic sea wave (tsunami)
moraine
24. A volcanic mountain on the seafloor. If flat-topped & it is a guyot.
frost wedging
seamount
metamorphic rock
density
25. The presence of layers in some rocks caused by parallel alignment of minerals.
ecosystem
geology
foliated
subduction
26. A wall built out from the shore & usually at perpendicular to it to trap sand carried by longshore currents .
wave crest
estuary
acid
groin
27. A narrow strip of land that has water on either side and connects two larger bodies of water.
isthmus
surf
kettle
strip mining
28. A vertical conduit through the Earth's crust below a volcano & through Which magma has passed.
mineral
plate tectonics
pipe
seismoscope
29. Water that flows across watersheds during and immediately after severe rainstorms. In populated areas & stormwater runoff is often water that cannot be handled by existing sewer systems. Stormwater runoff is the leading source of water pollution in t
neptune
eclipse
lava
stormwater runoff
30. A large amount of gas and dust in space & spread out in an immense volume.
nebula
smelting
aquatic
delta
31. The speed at which water flows.
strip mining
crystal
current speed
oxbow
32. Any seismic wave that travels through the body of Earth & rather than along its surface.
body wave
Mesozoic
lava flood (plateau basalt)
viscosity
33. The process by which ocean floors spread laterally from crests of main ocean ridges. As material moves laterally from the ridge & new material replaces it along the ridge crest by welling upward from the mantle.
seafloor spreading
reservoir rock
reef
sod
34. A roughly circular reef with an occasional small & low & coral sand island surrounding a shallow lagoon.
constellation
volcanic
atoll
equator
35. A minor tremor that precedes an earthquake. An increase in seismicity may signal that a major release of strain energy is about to occur.
weathering
fluctuate
foreshock
igneous rock
36. The zones of seismic activity long which plates are in contact.
Laurasia
Earth
plate boundaries
acid
37. Mountains & characterized by extensive folding and thrust faulting & that form at convergent plate boundaries on continents.
Global Positioning System (GPS)
wave height
trench
fold and thrust mountains
38. The straightening and/or deepening of a river channel.
channelization
deflation
drainage divide
surf
39. The solid innermost part of the core with a diameter of a little over 1 &200 km.
baseline study
Richter scale
inner core
ice sheet
40. Lies half way between the north and south magnetic poles.
magnetic equator
plate tectonics
till (unstratified drift)
waterfall
41. An icicle-shaped accumulation of dripstone hanging from cave roof.
Laurasia
stalactite
hemisphere
island arc
42. An isolated & steep-sided & rocky mass or island just offshore from a rocky headland & usually on a shore platform.
Pillow Lava
seastack
observator
till (unstratified drift)
43. A thickened elevated region of Earth's crust that is mainly (but not entirely) above sea level.
isthmus
water clarity
continent
arid
44. A ridge of high water associated with a hurricane and which floods over the shore .
Copernicus & Nicholas
desertification
lava flood (plateau basalt)
storm surge
45. The oldest eon in Earth history & extending from the origin of the Earth to about 3.9 billion years ago.
viscosity
glaciation
base
Hadean
46. A study designed to collect critical data to be used for comparison or as a control in a later study.
baseline study
absolute time
Proterozoic
storm surge
47. Bent rock strata.
rockslide (rock avalanche)
magnitude
fold
drainage divide
48. The chronological sequence of units of Earth time.
epicenter
geologic time scale
exotic river
channelization
49. A large ridge or mound-like structure within a body of water that is built by calcareous organisms such as corals & red algae & and bivalves.
sand dune
subduction
reef
isthmus
50. A type of disintegration in which jointed rock is forced apart by the expansion of water as it freezes in fractures.
divergent boundary
frost wedging
flood
divergent boundary