Transcript 4th gradeWeather Test Study Guide

Weather
Study Guide
Section 1: Vocabulary
2 points each (matching)
What are all the particles of air
pressing on a surface?
Air pressure
What is the layer of air that
surrounds our planet?
The atmosphere
What is another name for the
amount of water vapor in the air?
humidity
What is the name of the layer
of the atmosphere closest to
the Earth where most weather
occurs?
Troposphere
 Layer closes to the
earth
 Weather happens in
this layer
 Live and breathe air in
this layer
 Air temperature
decreases as you go
higher
nd
2
What is the
closest layer of
the atmosphere to the Earth?
Stratosphere
 Airplanes travel in this
layer to avoid bad weather
 Contains most of the
atmosphere’s ozone
 Ozone protects living
things from harmful rays of
the sun
 Temperature increase with
height
What is the 3rd closest layer of
the atmosphere to the Earth
which is also the coldest layer?
Mesosphere
 Temperature
decreases with
height
 Coldest layer of the
atmosphere
What is the hottest, outermost
layer of the atmosphere?
Thermosphere
 Hot, outermost layer
 Temperature increase
quickly with height
What is the way that the
atmosphere traps heat to warm
land and oceans called?
Greenhouse Effect
What are huge bodies of air
called?
Air Masses
What do we call the place
where two air masses meet?
A front
What are the high, wispy clouds
that signal cool, fair weather?
Cirrus
What are the puffy clouds that
often signal clear, warm days?
Cumulus
What are the tall, dark clouds
that signal thunderstorms?
Cumulonimbus
 Dense cumulus cloud
with a hazy outline
 Usually producing
heavy rain,
thunderstorms, or
hailstorms
What are the low, grey clouds
often occurring along warm fronts
sometimes bringing rain or
snow?
Stratus
 Dark gray clouds that
form a low layer
 Sometimes bring rain
or snow showers
Section 2: Science
Concepts
5 points each
What are the four layers of the
atmosphere?
The four layers of the atmosphere
are:




Troposphere
Stratosphere
Mesosphere
Thermosphere
What instruments do
meteorologists use to forecast
weather?
Anemometer
 Measures wind speed
 The cups catch the
wind, turning a dial
attached to the
instrument.
 The dial shows the
wind speed.
Barometer
 Measures air pressure
Hygrometer
 Measures the amount
of humidity in the air.
In which layer of the atmosphere
does most weather occur?
troposphere
What is the cloud type that
usually brings heavy rain?
cumulonimbus
What does warm air do when
affected by cooler air?
Warm air can be characterized as
forced upward by cooler air and it
exerts low pressure.
Describe the water cycle.
The water cycle consists of four different
events that constantly repeat themselves.
(Be able to describe each one).
CONGRATULATIONS!!
You did it!!!
If you did well on this study
guide, you should do well on the
test. 