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80 Cards in this Set

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The coldest air mass
Artic (A)
What type of air mass brings cold and dry air to an area?
cP
What type of air mass consists of humid and warm air?
mT
Which type of air mass brings us cold weather from Canada & Alaska?
cP
Maritime tropical (mT) air masses bring North Carolina warm air and precipitation. What body of water does this come from?
Gulf of Mexico
What are typical weather patterns over a long period of time for any given area called?
climate
Fronts are narrow region separating two air masses of different densities.
The density differences are caused by difference in temperature, humidity,and ___________.
pressure
What type of instrument is used to measure wind speed?
barometer
What type of instrument is used to measure air pressure?
ceilometer
What type of instrument is used to measure how high the clouds are?
barometer
A balloon that is sent up on the atmosphere to record data is called a _______.
radiosonde
What type of instrument is used to measure air temperature?
therometer
What type of instrument is used to measure humidity?
hygrometer
What type of clouds may stay in a specific area for a couple of days?
stratus
This category tornado and higher has the power to destroy forests and farmland:
F3
What is the type of cloud called that tornados form from?
nimbus
Wind-chill factor makes the air feel _______ than what it really is.
colder
Why might the price of carrots increase during a major drought?
not as many carrots being produced
Thunderstorms are usually brought to an area by __________ clouds.
nimbus
The tornado that ripped through Alabama earlier in the year had wind speeds of 175 mph. What rating tornado was it?
F3
hurricane is the most powerful type of what?
tropical cyclone
This is the warmest climate zone on Earth, and the one that receives the most precipitation.
tropical
Which climate zone covers 30% of all land on Earth?
dry
What type of air mass usually dominates dry climate regions?
cT
What three criteria does the Koppen Classification System use to categorize climate zones?
vegetation, temperature, and precipitation
Why do polar climate zones receive little precipitation because cold air contains less ________ than warm air.
moisture
How long during the year do the North and South Poles experience complete darkness or complete sunlight?
6 months
During an El Nino, what happens to the water in the Pacific Ocean?
gets warmer
What are the reasons why we had such a warm winter?
global warming and El Nino.
What determines how long seasons last?
Earth's tilt
The time in-between ice ages are called _________ periods.
interglacier
What is often left behind after ice ages end?
lakes
How often do scientists believe ice ages occur?
every 100,000 years
What gas acts like a blanket, preventing heat from escaping the atmosphere during the greenhouse effect?
CO2
Global warming is likely to increase the spread of _____.
deserts
Which of the following is not a fossil fuel? (coal, oil, natural gas, or lumber)
lumber
CFC’s destroy what barrier that protects the Earth?
ozone layer
Global warming can cause the world’s ocean levels to _____.
rise
Scientists look at what evidence to determine the geologic time scale?
fossils
The process responsible for forming altered hard part fossils is called what?
permineralization
What two types of fossils contain no bone or shell material?
casts and molds
In an original preservation fossil, no ______________ has taken place.
decomposition
This type of time frame in measured in tens of millions of years.
epoch
Eras are defined as the differences in life forms found in ____________.
rocks
This theory states that the processes occurring today have been occurring ever since Earth was created.
uniformitarianism
In cross-cutting relationships, rock cutting through another body of rock must be ___________ than the rock being cut through.
younger
Unconformity is caused by what two processes?
erosion and weathering
Paleozoic is a Greek word meaning what?
old life
What percentage of all life forms that ever existed on Earth are now extinct?
90%
Original preservation fossils usually occur when there is a lack of ____________ in the decomposition process
oxygen
What type of fossils are used to correlate rock layers over large areas?
index
permineralization, what are the pore spaces of rocks filled with?
minerals
What type of rock do molds usually form in?
sedimentary
Evidence or remains of once living plants or animals are called ____________.
fossils
In altered hard part fossils, the _____________ has been completely removed or decayed.
organic material
How long ago do many scientists theorize Earth was formed?
4.6 billion years ago
___________states that the oldest rocks layers are at the bottom, and each consecutive layer going up is younger.
superposition
____________ is a gap in the rock record caused by erosion or weathering.
unconformity
Mountain building, erosion, and sea floor spreading are all examples of ________________.
unconformity
Uniformitarianism states that all processes on Earth have continuously been occurring, and only rate, intensity, and _______ has changed.
scale
The record of the Earth’s history is called the ______________.
geologic time scale
A Russian space explorer is called what?
cosmonaut
What is the oldest part of the moon?
highlands
What device is used to magnify objects far away?
telescope
Partial blockage of the sun is called what?
partial eclipse
What are long trails of ejecta on the moon called?
rays
What is the material blasted away when a crater hits called?
ejecta
What is the beginning stage of the moon cycle?
new moon
What is an object that orbits a planet called?
natural satellite
What is the valley-like part of the moon located within the maria?
rilles
The moon lacks a (an) _____________, which allows morecraters to actually strike the surface.
atmosphere
This type of telescope uses mirrors.
reflecting
The side of the moon we always see is __________ than the other.
heavier
This type of telescope uses lenses.
refracting
What is the average number of days it takes the moon to complete
its cycle?
24 hours
The Earth’s atmosphere is full of water vapor, dust, and
___________, which can cause telescope sight to be blurry.
pollution
What is it called when the moon passes in front of the sun and casts a
shadow on the Earth?
eclipse
What is the station just outside of the atmosphere where many countries
perform space experiments?
International Space Station (ISS)
An American space explorer is called what?
astronaut
This type of scientific study is often performed on the ISS.
microgravity