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Chapter 15 Review
Earth Science
Mrs. Elliott
6th Grade / Blue Team
Atmosphere
 Which layer of the atmosphere contains the
ozone layer?
ANSWER:
 The STRATOSPHERE
 In the STRATOSPHERE there is very little
turbulence.
 The ozone layer absorbs radiation here.
Question
 Which atmospheric layer contains weather?
Answer:
 The TROPOSHPERE
 The Troposphere contains 78% nitrogen and
21% oxygen
 The troposphere is where we live and play.
Question:
 Which atmospheric layer contains
electrically charged particles?
Answer:
 The IONOSPHERE
 The ionosphere exists in the lower
thermosphere between 80 an 280 km.
Question:
 What process changes water vapor into
liquid?
Answer:
 CONDENSATION
 Condensation is a process in which water
vapor changes to a liquid.
Question:
 Which process transfers heat by contact?
Answer:
 Conduction
 Conduction is the transfer of energy that
occurs when molecules bump into each
other.
Question:
 Which global wind affects weather in the
United States?
Answer:
 Westerlies
 The westerlies are near 30 degrees north
and south latitude, Earth’s rotation deflects
air from west to east as air moves toward
the polar regions.
 In the United States, the westerlies move
weather systems from west to east.
Question:
 What is the Coriolis effect?
Answer:
 The rotation of Earth causes moving air and
water to appear to turn to the right north of
the equator and to the left south of the
equator.
 It causes moving air to turn to the right in the
northern hemisphere and to the left in the
southern hemisphere.
Question:
 What forms during the day because water
heats slower than land?
Answer:
 Sea Breeze
Question:
 What is the most abundant gas in Earth’s
atmosphere?
Answer:
 Nitrogen
Question:
 How many layers are in Earths
Atmosphere?
Answer:
 Five
Statement:
 Name the five layers of the atmosphere.
Answer:





Exosphere
Thermosphere
Mesosphere
Stratosphere
Troposhphere
Statement:
 Identify each layer of the atmosphere and
the purpose of that specific layer.
Answer:
 Exosphere – extends out to about 1000 km;
most satellites orbit here.
 Thermosphere – Northern lights occur here.
Space stations such as MIR and the
International Space Station have stable
orbits at 300- to 380- km altitude.
Temperatures here may reach as high as
1000 Celsius.
Answer Continued:
 Mesosphere – Temperatures decrease here
to -90 degrees
Meteoroids burn up here.
 Stratosphere – Very little turbulence; ozone
layer absorbs radiation here.
 Troposphere – Contains 78% nitrogen and
21% oxygen