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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. Lies half way between the north and south magnetic poles.
greenhouse gases
Sun
magnetic equator
elevation
2. The presence of layers in some rocks caused by parallel alignment of minerals.
snow line
light-year
foliated
flash flood
3. 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
subtropical deserts
tidal delta
moraine
4. Igneous. Antonym of intrusive. Synonym of volcanic. Pertaining to igneous rocks or features formed from lava released on the Earth's surface.
seastack
acid
extrusive
geologic column
5. The initial point within the Earth that ruptures in an earthquake & directly below the epicenter. The point within the Earth which is the center of an earthquake & at which strain energy is first released and converted to elastic wave energy.
magnetic equator
magnetic polarity
focus
longitude
6. Extending across a continent.
beach
stalagmite
natural resources
transcontinental
7. A post of dripstone growing up from a cave floor.
chlorofluorocarbons (CFC's)
global warming
stalagmite
open pit mining
8. The solid innermost part of the core with a diameter of a little over 1 &200 km.
boundary
compression fossil
hardness
inner core
9. The very small particles of dirt & soot & and other pollutants that are present in the air.
acid
snow line
particulate air pollution
dust devil
10. The distance between two successive wave crests or troughs.
galaxy
isthmus
wave length
lithosphere
11. A system involving continuous interaction of the solid Earth & the atmosphere & the oceans and living things.
lava
convection cell
Earth system
plate tectonics
12. An isolated & steep-sided & rocky mass or island just offshore from a rocky headland & usually on a shore platform.
seastack
storm surge
seismoscope
climate
13. 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.
estuary
moraine
volcano
soil
14. A broad & mound-like mass of glacier ice that usually spreads radially outward from a central zone.
geyser
nautical mile
ice sheet
wind farm
15. The closest star to Earth besides the sun. It is approximately 4 light years away.
Milky Way
pathogen
Proxima Centauri
igneous rock
16. A giant structure that contains hundreds of billions of stars.
oal
cleavage
storm surge
galaxy
17. A fracture or zone of fractures along the boundaries of tectonic plates where movement has taken place.
subduction zone
floodplain
fault
conduction
18. A tool for measuring the relative clarity of water.
drainage basin
era
secchi disk
current speed
19. A group of islands; an expanse of water with scattered islands.
archipelago
intrusive
scour
wind farm
20. Plutonic. Antonym of extrusive. Pertaining to igneous rocks or features formed by the emplacement of magma in pre-existing rocks.
Proxima Centauri
sextant
intrusive
aftershock
21. A guide to reading a map that typically contains distance scales & arrows indicating direction & and/or explanations of symbols used.
outcrop
legend
continental shelf
absolute time
22. A hole or basin cut into bedrock of a stream by the abrasive action of pebbles and sand swirled by turbulent stream flow.
aa
ablation
pothole
lahar
23. The straightening and/or deepening of a river channel.
channelization
flash flood
ground water
oxbow lake
24. A lake of lava & usually basaltic & in a volcanic caldera.
lava lake
viscosity
isostatic change in sea level
ground water
25. The formation & advance and retreat of glaciers and the results of these activities.
eclipse
hemisphere
glaciation
igneous rock
26. Highly mafic igneous volcanic rock & typically fine-grained and dark in color; rough volcanic equivalent of gabbro. Basalt is the most abundant volcanic rock in the Earth's crust.
basalt
seamount
runoff
seismology
27. 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
habitat
global warming
magnitude
28. The arrangement of rock units in the proper chronological order from youngest to oldest.
s- wave (secondary wave & shear wave)
barrier beaches
geologic column
compass Rose
29. 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
Laurasia
epoch
superposition
chalk
30. The concept of a sequence of events involving the formation & alteration & destruction and reformation of rocks as a result of geologic processes.
Jupiter
rock cycle
archaean
ground water
31. An accumulation of wind driven sand into a distinctive shape.
intensity
Modified Mercalli Scale
region
sand dune
32. An area subject to dust storms & especially south central United States .
comet
ozone depletion
ground moraine
dust bowl
33. Sediments produced directly by the life processes of plants or animals.
Global Positioning System (GPS)
flood
biogenic sediment
sod
34. As applied to glacier ice & the process by which ice below the snow line is wasted by evaporation and melting.
secchi disk
legend
ablation
oceanic trench
35. A geometrical form taken by a mineral & giving external expression to orderly internal atomic arrangement.
Earth
stormwater runoff
pathogen
crystal
36. The line that separates one drainage basin from another.
quarrying
seismic sea wave (tsunami)
drainage divide
geothermal energy
37. 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
Hale-Bopp
extrusive
ozone depletion
38. Enormous & thick sheets of rock that are part of the Earth's upper mantle that move and adjoin each other along zones of seismic activity. Many tectonic plates extend underneath both continents and sea floor.
tectonic Plates
humus
Continntal Drift Theory
density
39. The very slow & generally continuous downslope movement of soil and debris under the influence of gravity.
inner core
primary productivity
creep
Galileo
40. Living in water.
plate tectonics
gravity
aquatic
ore
41. A waste material that contaminates air & water & or soil.
silicate
pollutant
divergent boundary
reservoir rock
42. A group of stars that appear to make a pattern in the sky. The Big Dipper is a constellation.
constellation
flash flood
orogeny
plate boundaries
43. The areas of & in & or constituting a city.
renewable resources
epoch
urban
black hole
44. A portable time keeper with a mechanism for ensuring accuracy and adjusting itself & used for determining longitude at sea.
star
marine Chronometer
oxbow
clast
45. 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.
denudation
peat
swash and back wash
Pelean eruption
46. 1. A steep-walled & usually conical depression at the summit or on the flanks of a volcano & resulting from the explosive ejection of material from a vent. 2. A bowl-shaped depression with a raised & overturned rim produced by the impact of a meteori
sinkhole
crater
sod
seismograph
47. A system that uses a constellation of 24 satellites & their ground stations & and individual GPS receivers to accurately locate points on Earth.
fold
Global Positioning System (GPS)
latitude
flash flood
48. Till deposited from main body of glacier during ablation.
ground moraine
elevation
coast
oceanic crust
49. The theory that states that the present-day continents are the fragmented pieces of preexisting larger landmasses called supercontinents.
Continntal Drift Theory
chlorofluorocarbons (CFC's)
drought
seismology
50. That part of the continental margin that lies between the continental shelf and the continental rise. Slope relatively steep & 3o - 6o. The continental slope is underlain by crustal rocks of the continent.
continental crust
continental slope
volcano
transform boundary