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WorksheetsEarth Science Merged Grade 8
Total questions: 189
Worksheet time: 4hrs 1mins
The jet stream usually stays too far north to affect Florida’s weather. What is the jet stream?
The spinning of the air in the same direction as Earth’s rotation
The spinning of the air in the opposite direction of Earth’s rotation
The movement of air from an area of high pressure to an area of low pressure
A narrow band of strong winds that blow in the upper region of the atmosphere
What impact does the Gulf Stream have on the climate of the east coast of the US?
The cold water from the Gulf Stream current cools the land.
The warm water from the Gulf Stream current warms the land.
The cold water from the Gulf Stream current decreases inland wind speeds.
The warm water from the Gulf Stream current increases inland wind speeds.
What causes wind?
differences in air pressure & temperature
differences in gravity
difference in oxygen
differences in the thermosphere
The movement of deep, cold, nutrient filled water to the surface of the ocean is..
Ocean Current
Upwelling
Deep Currents
Surface Currents
The jet stream blows West to East
True
False
Deep ocean currents are caused by…?
Differences in salinity
Differences in temperature
Differences in temperature and salinity
None of these
How is heat transferred around the Earth’s oceans?
Cold ocean currents push warm water away from the poles
Warm ocean water, heated by the sun, moves away from the equator to the poles
Wind pushes warm ocean currents around, but have no effect on cold currents
Rain, snow, and sleet are all examples of…
Precipitation
Condensation
Transpiration
Evaporation
How do Sea breezes affect cities on the coast?
They bring in warm air that increases the temperature in the city
They bring in cool air that decreases the temperature in the city
In what layer of the atmosphere do all weather events occur?
Stratosphere
Exosphere
Mesosphere
Troposphere
Why is the ozone layer vital to life on Earth?
Planes fly in the ozone layer
It is made up of oxygen (O2)
It shields the Earth from ultraviolet (UV) rays from the sun
It causes clouds to be created
In which layer of the atmosphere do meteors burn up?
Troposphere
Mesosphere
Thermosphere
Exosphere
What is the order of the layers of the atmosphere, starting with the layer closest to Earth's surface?
Stratosphere, Troposphere, Exosphere, Mesosphere, Thermosphere
Troposphere, Stratosphere, Mesosphere, Thermosphere, Exosphere
Troposphere, Stratosphere, Mesosphere, Exosphere, Thermosphere
Troposphere, Stratosphere, Thermosphere, Exosphere, Mesosphere
Which explanation correctly describes the greenhouse effect?
The process of the atmosphere keeping the Earth's surface dense
The process of the atmosphere trapping the sun's radiation, and making the Earth warm
The process of the atmosphere keep us from floating into space
The process of the atmosphere reflecting all of the Sun's heat back into space
Which area has the most precipitation?
The north pole, because the temperature is colder there is more snow
The equator, because warmer temperatures cause more evaporation, leading to more clouds and rain
The south pole, because colder temperatures cause more evaporation, leading to more snow
The equator, because global winds push rain south
Which of these statements is true about climate and ocean currents
San Diego has a warmer climate because it is near the warm California current
Charlotte has a warmer climate because it is closer to the jet stream
Charlotte has a warmer climate because it is near the warm Gulf Stream current
San Diego has a colder climate because it is near the jet stream
A narrow band of fast moving winds high in the atmosphere that move from west to east
Jet Stream
doldrums
equator
polar easterlies
What will most likely result when the jet stream moves south of North
Carolina?
North Carolina will experience tropical weather conditions.
North Carolina will experience hot, dry weather.
North Carolina will experience mild weather.
North Carolina will experience cold weather.
Ocean Currents play a role in determining climate.
True
False
Cool air will stay south of the jet stream and the warm air will stay north of the jet stream.
True
False
What kind of weather would you expect at the place marked "X" on the weather map?
warm and wet
cold and wet
cold and sunny
cold and clear
Who came up with the theory of plate tectonics?
Alfred Wegener
Alfred Wilson
Mrs. McCalvin
Addison Wegener
Which is NOT a piece of evidence used to support the theory of plate tectonics?
The study of fossils
The shape of continents
The pattern of rocks
The native language
At which plate boundary is new crust formed?
divergent
continental
convergent
transform
What type of crusts are involved with one plate subducting beneath another?
continental and continental
oceanic and divergent
Oceanic and continental
continental and convergent
What types of landforms are formed at convergent boundaries?
PICK TWO
volcanoes
Trenches
new crust
rift valley
The earth's plates, rigid slabs of rock, are part of the ___ .
asthenosphere
mantle
lithosphere
granitic rock
A body of permeable rock which can contain or transmit groundwater.
aquifer
river
stream
bedrock
The envelope of gases surrounding the earth or another planet.
atmosphere
biosphere
crysosphere
geosphere
The regions of the surface, atmosphere, and hydrosphere of the earth occupied by living organisms.
lithosphere
biosphere
cryosphere
geosphere
Process of breaking down rock.
erosion
freezing
cracking
weathering
Process of moving sediment from one place to another.
weathering
erosion
transportation
deposition
The part of the earth's surface characterized by the presence of frozen water.
geosphere
hydropshere
biosphere
cryosphere
Wetlands that form as rivers empty their water and sediment into another body of water, such as an ocean, lake, or another river.
delta
dune
sinkhole
glacier
Process of accumulating sediment after it has been moved.
weathering
erosion
transportation
deposition
A mound or ridge of sand or other loose sediment formed by the wind, especially on the sea coast or in a desert.
delta
dune
wetland
bluffs
The parts of our planet that are solid (like the mantle and crust).
geosphere
cryosphere
hydrosphere
atmosphere
All the waters on the earth's surface, such as lakes and seas, and sometimes including water over the earth's surface, such as clouds.
geosphere
hydrosphere
cryosphere
atmosphere
A slowly moving mass or river of ice formed by the accumulation and compaction of snow on mountains or near the poles.
dune
delta
landform
glacier
A natural feature of the earth's surface.
landform
system
landmark
city
A set of things working together as parts of a whole.
community
network
system
group
The state of the atmosphere at a place and time as regards heat, dryness, sunshine, wind, rain, etc.
climate
weather
forecast
humidity
The conditions prevailing in an area in general or over a long period.
weather
climate
forecast
humidity
Rain, snow, sleet, or hail that falls to the ground.
precipitation
condensation
evaporation
accumulation
Water which collects as droplets on a cold surface when humid air is in contact with it.
condensation
precipitation
accumulation
evaporation
A narrow variable band of very strong, usually westerly, air currents encircling the globe several miles above the earth.
front
jet stream
air mass
atmosphere
The brittle, rocky outer layer of Earth.
crust
mantle
inner core
outer core
An area of Earth's crust that has an extended break in it.
hotspot
earthquake
plate
fault
A type of rock formed from cooling magma or lava.
sediment
sedimentary rock
igneous rock
metamorphic rock
Molten rock that is present on Earth's surface.
magma
lava
igneous
metamorphic
Molten rock that is present under Earth's surface.
magma
lava
igneous
metamorphic
Rocks formed by extreme high temperatures and pressure without melting.
sediment
sedimentary rock
igneous rock
metamorphic rock
Theory that Earth's surface is broken into large, rigid pieces that move with respect to each other.
plate tectonics
continental drift
pangea
earthquakes
A type of rock formed through lithification of other pieces of rocks and minerals.
sediment
sedimentary rock
igneous rock
metamorphic rock
Rigid parts of Earth's surface that are broken into pieces and move because of convection currents in Earth's mantle.
tectonic plates
plate tectonics
continents
rocks
Natural disaster involving water that results from plate movement in oceans.
earthquake
tsunami
hurricane
volcano
The plastic layer of the mantle that tectonic plates "float" on.
asthenosphere
upper mantle
lower mantle
lithosphere
Tectonic plates colliding.
convergent
divergent
transform
ridge
Tectonic plates moving away from each other.
convergent
divergent
transform
ridge
Tectonic plates sliding past each other.
convergent
divergent
transform
ridge
This layer of Earth's rotation generates our magnetic field.
crust
mantle
inner core
outer core
The only liquid layer of Earth.
crust
mantle
inner core
outer core
Earthquakes, mid ocean ridges, volcanoes, tsunamis, and fault zones are all results of:
tectonic plate movement
weather
human impact
gravity
Dating rock formations using radioactive isotopes in fossils or other remains.
absolute dating
relative dating
law of superposition
radioactive decay
Dating a rock formation by comparing it to the layers around it.
absolute dating
relative dating
carbon dating
radioactive dating
The principle that relative dating is based on.
law of superposition
radioactive decay
absolute dating
fossils
Remains of organisms that lived for a short period of time and were wide spread.
mold fossils
cast fossils
index fossils
amber fossils
Age of a rock compared to the ages of other rocks, such as "this rock is older than the rest in the area".
Absolute Age
Law of Superposition
Relative Age
Unconformity
the number of years that have passed since the rock was formed, such as, "this basalt layer is 1000 years old +/- 20 years".
absolute age
law of superposition
relative age
unconformity
In undisturbed horizontal layers of sedimentary rock, the oldest rocks are found at the bottom. Each higher layer is younger than the layer(s) below it.
absolute age
law of superposition
relative age
unconformity
A gap in the geologic record due to erosion. Where new rock layers meet a much older rock surface beneath them.
absolute age
law of superposition
relative age
unconformity
Lava that hardens on the Earth's surface, forming igneous rock is an example of:
extrusion
fault
index fossil
intrusion
Magma pushes into rock layers below the surface of the earth where it cools and hardens into igneous rock.
extrusion
fault
index fossil
intrusion
Always younger than the rock layers that it cuts through, this break in Earth's crust is caused by forces acting on the rocks on either side.
extrusion
fault
index fossil
intrusion
Widely distributed and representing an organism that existed for a geologically short period of time, they are useful in finding relative age of rocks they are found in.
extrusion
fault
index fossil
intrusion
The breakdown of radioactive elements over time, where the atoms of one element break down to form atoms of another element.
half-life
law of superposition
radioactive decay
relative age
The time it takes for half of the radioactive atoms to decay. This rate never changes.
half-life
law of superposition
radioactive decay
relative age
A record of the geological events and the evolution of life on Earth, as seen by fossil record is:
era
geologic time scale
period
time line
The Geologic Time Scale is divided into large amounts of time which are identified by changes in life and condition of earth, named: Paleozoic, Mesozoic, and Cenozoic. These are called:
eras
periods
time scales
history
Geologic time begins with:
Cenozoic Era
Mesozoic Era
Paleozoic Era
Precambrian Time
What do scientists believe pulled the dust, rock, and ice in space together to form our planet?
energy from the sun
gravity
magnetic force
velocity
Why do geologists use the geologic time scale to show Earth's history?
because the size of Earth is so great
because the time span of Earth's past is so great
because the size of Earth is so small
because the time span of Earth's past is so small
Index fossils are useful when identifying the relative age of rock because they are:
widespread & have a relatively short lifespan
widespread and they have a relatively long lifespan
occur in a small area and have a relatively short lifespan
occur in a small area and have a relatively long lifespan
Which of the following best describes weather?
day to day conditions of the atmosphere at a place in regards to heat, dryness, sunshine, wind, rain, etc.
long-term conditions (months/years) of the atmosphere at a place in regards to heat, dryness, sunshine, wind, rain, etc.
Which of the following best describes climate?
day to day conditions of the atmosphere at a place in regards to heat, dryness, sunshine, wind, rain, etc.
long-term conditions (months/years) of the atmosphere at a place in regards to heat, dryness, sunshine, wind, rain, etc.
It is raining outside right now.
weather
climate
Over the last decade we have had an increase in the amount of rain in our area.
weather
climate
The high temperature today will be near 75 degrees F.
weather
climate
The average winter temperature is 30 degrees F.
weather
climate
The meteorologist predicts that tomorrow, it will be very windy outside.
Weather
Climate
Which of the following best describe the term 'climate'?
the day to day changes in the atmosphere around us
is taken over a long period of time
precipitation
is taken over a short period of time
I hear Australia is warm all year round! Let's go to Australia for vacation!
weather
climate
The temperature increased quickly overnight. I may need to get my summer clothes out.
weather
climate
It rained 2 inches in Seattle, Washington on November 5th.
weather
climate
Sandra visited her grandma in Florida over Thanksgiving. She noticed that they were selling bathing suits at the stores. Her grandma said they sell bathing suits all year because Florida is warm.
climate
weather
Marco got a Christmas photo from his cousin in Hawaii. The family wore shorts, sandals, and Santa hats. Marco’s dad said that was normal clothing because the average temperature in Hawaii is 82 degrees Fahrenheit that time of the year.
climate
weather
New York City had a record rainfall on Wednesday.
weather
climate
Skies were mostly clear on January 3rd in Baton Rouge, Louisiana.
weather
climate
James grabbed a rain coat before catching the school bus. It was already cloudy and the TV news reported that there would be rain all day long in Columbus.
weather
climate
Scientists use radiometric dating (radioactive decay) to measure...
relative time (dating)
absolute time (dating)
half-lives
time of day
Layer B on side #1 (left) is a match to which layer on side #2 (right)?
z
y
w
there is no match
Absolute age is defined as:
The age of rock determined by radiometric dating.
The age of rock based on living animals.
The age of rock based on its location.
The age of rock determined by relative dating.
By saying "my dad is 48 and I am 13", it would be...
relative dating (time)
absolute dating (time)
law of superposition
igneous rock formed from lava that erupted onto Earth's surface
extrusive
intrusive
clastic
biogenic
igneous rock that formed when magma hardened beneath the surface of Earth
extrusive
intrusive
clastic
biogenic
constantly broken apart by freezing and thawing, plant roots, acid, and other forces on rock
weathering
erosion
compaction
cementation
the process by which running water, wind, or ice carry away bits of broken-up rock
weathering
erosion
compaction
cementation
the process by which sediment settles out of the water or wind carrying it
deposition
erosion
compaction
cementation
the process that presses sediments together
deposition
erosion
compaction
cementation
the process in which dissolved minerals crystallize and glue particles of sediment together
deposition
erosion
compaction
cementation
a sedimentary rock formed when rock fragments are squeezed together
clastic
organic
chemical
extrusive
a sedimentary rock formed where the remains of plants and animals are deposited in layers
clastic
organic
intrusive
extrusive
a sedimentary rock formed when minerals dissolved in a water solution crystallize
extrusive
organic
intrusive
chemical
metamorphic rock with thin, flat layers
foliated
nonfoliated
intrusive
extrusive
metamorphic rock with mineral grains arranged randomly and not in layers
foliated
nonfoliated
intrusive
extrusive
