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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 glaciated valley now flooded by the sea.
fjord
eon
crystal
cave
2. 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.
ground water
moraine
current speed
seafloor spreading
3. The process of removing metal from ore.
inertia
axis
humus
smelting
4. A supercontinent that existed from the Jurassic to Early Tertiary after splitting from Pangea; composed of Laurentia & Baltica & Avalonia & (modern North America & Scandinavia & Greenland & Western and Central Europe); eventually fragmented into Eur
acid
pollutant
island arc
Laurasia
5. The point on the Earth's surface that is directly above the focus of an earthquake.
continental rise
flash flood
epicenter
meander
6. Objects revolving around the sun that are too small and too numerous to be considered planets.
plate boundaries
convection
inertia
asteroid
7. The condition of equilibrium & comparable to floating & of units of the lithosphere above the asthenosphere.
absolute time
isostasy
transcontinental
constellation
8. The direction & north (normal) or south (reversed) & that a magnetic compass needle points.
magnetic polarity
scale
plutonic
marine Chronometer
9. Occurs at the intersection of the water table with the ground surface.
salinity
subduction
Phanerozoic
spring
10. An eon of geologic time extending from about 3.9 billion years to 2.5 billion years ago.
archaean
beach
surf
pollutant
11. A group of stars that appear to make a pattern in the sky. The Big Dipper is a constellation.
sandstorm
rapids
foreshock
constellation
12. 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.
viscosity
fault
seismic gap
ore deposit
13. 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.
seismic gap
cementation
continental shelf
sand dune
14. The level of light that penetrates through water.
weathering
Richter scale
reef
water clarity
15. Bent rock strata.
reservoir rock
fold
orogeny
conduction
16. The two days of the year on which neither hemisphere is tilted toward or away from the sun.
equinox
aa
Earth
thermal spring
17. 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.
scour
denudation
steppe
Proterozoic
18. A stone or boulder & glacially transported from place of origin and left in an area of different bedrock composition.
nautical mile
calving
peat
erratic
19. Containing moisture.
atoll
ozone layer
Mars
humid
20. An area in which a large number of windmills have been erected to generate electrical power.
focus
primary productivity
wind farm
continental slope
21. (Latin- Sol & Greek- Helios)the closest star to Earth. It is a giant ball of gas without any solid surface.
plate boundaries
stormwater runoff
estuary
Sun
22. The effect of water and carbon dioxide absorbing outgoing infrared radiation & raising a system's temperature. The term is generally used with reference to the Earth's temperature & although it can also be applied to other systems & such as greenhous
hardpan
volcano
Greenhouse Effect
region
23. A naturally occurring inorganic solid that has a well-defined chemical composition and in which atoms are arranged in an ordered fashion.
mineral
era
Pillow Lava
pathogen
24. 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.
swash and back wash
climate
thrust fault
tidal inlet
25. In a stream & the volume of water passing through a channel in a given time.
plate
star
discharge
subtropical deserts
26. A large area with common features that set it apart from other areas.
latitude
atlas
precipitation
region
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
conserve
you-shaped valley
seismograph
granitic
28. Mercury is named after the Roman messenger of the gods. It is the closest to the Sun.
Mercury
inertia
mantle
compass
29. The point on the Earth's surface directly above the focus of an earthquake.
Mesozoic
discharge
shoreline
epicenter
30. An area where fresh water comes into contact with seawater & usually in a partly enclosed coastal body of water; a mix of fresh and salt water where the current of a stream meets the tides.
seismic sea wave (tsunami)
you-shaped valley
Precambrian
estuary
31. 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.
denudation
abyssal plain
hardness
mid-ocean ridges
32. A process of land degradation initiated by human activity & particularly in the zones along the margins of deserts.
black hole
rapids
desertification
Proterozoic
33. 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.
karst
triangulation
continental divide
casts
34. The point on the Earth's surface where a magnetic needle points vertically downward (north magnetic pole) or vertically upward (south magnetic pole).
Cenozoic
magnetic pole
inertia
escarpment
35. An instrument used to measure the speed of wind.
drift
lava
epoch
anemometer
36. The processes of weathering by which physical actions such as frost wedging break down a rock into fragments & involving no chemical change.
core
shield volcano
zone of saturation
disintegration (mechanical weathering)
37. No identifiable layers of minerals in a rock sample
rock
seismic gap
trench
nonfoliated
38. Mars is named after the Roman god of war. It is the fourth planet from the Sun.
period
channelization
mantle
Mars
39. Imaginary lines on a map or globe that measure distance in degrees east or west of the prime meridian. Longitude lines extend vertically & from pole to pole on a globe.
thrust fault
compass
pahoehoe
longitude
40. The relationship between distances in the area being mapped and distances in the map itself.
scale
constellation
archipelago
Paleozoic
41. Lies half way between the north and south magnetic poles.
humid
magnetic equator
subtropical deserts
Pangea
42. The internal resistance to flow in a liquid.
viscosity
surf
continental rise
permafrost
43. A device built to study distant objects by making them appear closer.
sextant
smelting
seamount
telescope
44. A portable time keeper with a mechanism for ensuring accuracy and adjusting itself & used for determining longitude at sea.
chemical sediment
ozone
swells
marine Chronometer
45. Produced as a wave steepens and falls forward as the wave nears the shore.
Pangea
zone of aeration
drought
surf
46. Deep steep-sided depression in the ocean floor caused by the subduction of oceanic crust beneath either other oceanic crust or continental crust.
Pluto
plain
hardness
oceanic trench
47. 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.
magnetic equator
reserves
transform boundary
vesicle
48. (Greek-Aphrodite)named after the Roman goddess of love. It is the planet closest in size to Earth and the second planted from the Sun.
Venus
barrier reef
pollutant
wave height
49. The remains of an extremely massive star pulled into a small volume by the force of gravity.
black hole
siltation
smelting
swash and back wash
50. A naturally occurring inorganic solid that has a well-defined chemical composition and in which atoms are arranged in an ordered fashion.
gemstone
gravity
mineral
Pillow Lava