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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 dense & hot (sometimes incandescent) cloud of volcanic ash and gas produced in a Pelean eruption.
storm surge
region
nuee ardente
till (unstratified drift)
2. The way in which a rock or mineral breaks in random patterns rather than cleaving
specific gravity
continental divide
open pit mining
fracture
3. The concept of a sequence of events involving the formation & alteration & destruction and reformation of rocks as a result of geologic processes.
light-year
Galileo
rock cycle
cone of depression
4. A device containing a free-swinging magnetic needle that is attracted to Earth's magnetic North Pole. Used to determine direction of travel.
compass
beach
trench
current speed
5. The generally dark & more or less stable part of the organic matter in a soil & so well decomposed that the original sources cannot be identified.
biogenic sedimentary rock
floodplain
humus
intensity
6. A mass of ice & formed by the recrystallization of snow & that flows forward & or has flowed at some time in the past.
superposition
rapids
Copernicus & Nicholas
glacier
7. An eruption of lava that takes place from a fracture & usually without producing a cone.
superposition
rainforest
fissure eruption
groove
8. Deserts in zones of descending air between 25 degrees and 30 degrees north and south latitude.
subtropical deserts
secchi disk
resources
outcrop
9. The low spot between two successive waves.
Laurasia
period
wave trough
sod
10. 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.
compression fossil
observator
denudation
subduction
11. Swamp that forms in the low lying flood plain behind a levee.
continental shelf
plain
axis
back swamp
12. The area bordering a stream over which water spreads when the stream tops its channel banks.
shoreline
Cenozoic
erosion
floodplain
13. Glacial drift composed of rock fragments that range from clay to boulder size and randomly arranged without bedding.
stalagmite
observator
till (unstratified drift)
subduction zone
14. Any form of water & such as rain & sleet & or snow & that falls to Earth's surface.
secchi disk
precipitation
latitude
Copernicus & Nicholas
15. A large volume of dust-sized particles lifted high into the atmosphere.
star
hemisphere
dust storm
ozone
16. The tectonic region in which two plates meet.
strip mining
boundary
pipe
climate
17. An ingredient in a food or other substance that nourishes or promotes growth.
seamount
nutrient
spring
primary productivity
18. The area immediately below the ground surface within which pore spaces are partially filled with water and partially filled with air.
zone of aeration
stratification
suspension
back swamp
19. A narrow strip of land that has water on either side and connects two larger bodies of water.
isthmus
Mars
acid rain
luster
20. Flat land covered with tall grass and wildflowers.
Phanerozoic
crust
Earth system
prairie
21. 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.
nuee ardente
oxbow
Modified Mercalli Scale
ozone layer
22. A slide involving a downward and usually sudden movement of newly detached segments of bedrock sliding or slipping over an inclined surface of weakness such as a bedding plane & fault plane & or joint surface.
rockslide (rock avalanche)
density
flash flood
subduction zone
23. The Earth's crust underlying the ocean basins which is formed at mid-oceanic ridges. It is typically 5 to 10 kilometers thick composed of basalt.
oceanic crust
lava flood (plateau basalt)
subduction zone
volcanic
24. A broad & deep & generally straight furrow carved in bed rock by the abrasive action of debris embedded in a moving glacier. Larger and deeper than a glacial striation.
groove
absolute time
desertification
Sun
25. A depression in the ground formed by the melting of a block of glacier ice buried or partially buried by drift.
mid-ocean ridges
kettle
watershed
till (unstratified drift)
26. The naturally occurring material from which a mineral or minerals of economic value can be extracted at a profit.
weathering
wind farm
granitic
ore
27. Named after the Roman god of the sea. It is the eighth planet from the Sun.
neptune
equinox
marine Chronometer
sand dune
28. A coral reef attached directly to the mainland.
lithification
Venus
asthenosphere
fringing reef
29. Deposits of wind-borne dust.
continental shelf
zone of aeration
shoreline
loess
30. A vent in the surface of the Earth & from which lava & ash & and gases erupt.
volcano
El Nino
ice shelf
nebula
31. The prediction that climate will warm as a result of the addition to the atmosphere of humanly produced greenhouse gases.
cave
Earth
isthmus
global warming
32. The zone below the zone of aeration in which all pore spaces are filled with water.
isthmus
legend
zone of saturation
chlorofluorocarbons (CFC's)
33. A naturally occurring inorganic solid that has a well-defined chemical composition and in which atoms are arranged in an ordered fashion.
seamount
crust
hardness
mineral
34. Glacial deposits laid down directly by glaciers or laid down in lakes & ocean & or streams as result of glacial activity.
drift
rift (graben)
cinder cone
black hole
35. The region of a shore that is covered at high tide and exposed at low tide.
bar
current speed
fossil fuel
intertidal zone
36. 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
arch
Greenhouse Effect
shoreline
barrier reef
37. 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
plate boundaries
orogeny
rockfall
Laurasia
38. Any molten material that is extrusive or volcanic & or the rock that forms from a molten extrusive. Molten rock that flows at the Earth's surface.
you-shaped valley
lava
seismograph
gravity
39. An artificial hill formed by the debris of successive human settlements.
gemstone
tell
chlorofluorocarbons (CFC's)
cleavage
40. The environment where a particular plant or animal is normally found.
habitat
scale
pH
epicenter
41. The two days of the year on which the noon sun is directly overhead at either 23.5
solstice
salinity
you-shaped valley
aa
42. A soft compact calcite & CaCO3 & with varying amounts of silica & quartz & feldspar & or other mineral impurities & generally gray-white or yellow-white and derived chiefly from fossil seashells.
marine Chronometer
breakwater
chalk
ice shelf
43. Weathering processes that are the result of chemical reactions. Example: the transformation of orthoclase to kaolinite.
decomposition (chemical weathering)
pahoehoe
compass Rose
groundtruthing
44. The point on the Earth's surface directly above the focus of an earthquake.
latitude
tidal delta
tectonic Plates
epicenter
45. An era of time during the Phanerozoic eon lasting from 245 million years ago to 66.4 million ago.
streak
suspended load
seafloor spreading
Mesozoic
46. The elevation at which snow persists throughout the year.
intensity
pathogen
snow line
moon
47. The reflection of light on a given mineral's surface & classified by intensity and quality.
luster
observator
stalagmite
lava flood (plateau basalt)
48. A river that is able to maintain its flow through a desert because of water received from outside the desert.
boundary
breakwater
humus
exotic river
49. (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.
resources
dust devil
Venus
nautical mile
50. A thickened elevated region of Earth's crust that is mainly (but not entirely) above sea level.
isostasy
continent
water table
extrusive