PDF Describing Weather - Moore Public Schools
[Pages:4]Name
Date
Class
Content Vocabulary
LESSON 1
Describing Weather
Directions: Write the correct term in the boxes to the right of each definition. Then unscramble the letters in the shaded boxes to spell a ninth term.
air pressure relative humidity
dew point variable
humidity water cycle
kinetic energy weather
precipitation
1. series of processes through which water moves around the globe
2. the amount of water vapor in the air compared to the maximum possible amount of water vapor the air can contain at that temperature
3. energy an object has because of its motion
4. atmospheric conditions at a certain place and time
5. a quantity that can be changed
6. a force exerted by a column of air
7. the amount of water vapor in the air
8. boundary at which water vapor becomes liquid water
9. When they are unscrambled, the letters from the shaded boxes spell , which includes rain, snow, and sleet.
Copyright ? Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Weather
9
Name
Date
Class
Lesson Outline
LESSON 1
Describing Weather
A. What is weather?
1. The atmospheric conditions, along with short-term changes, make up the
of a certain place at a certain time.
B. Weather Variables
1. Scientists who study and predict weather are
.
2. Air
is the measure of the average kinetic energy of
molecules in the air. Molecules in warm air move molecules in cooler air.
than
3. surface below it.
is the pressure that a column of air exerts on the air or
a. Air pressure decreases as altitude
.
b. A(n)
is an instrument used to measure air pressure.
4.
is caused by air moving from an area of high pressure
to an area of low pressure.
a. In a south wind, the wind is coming from the
.
b. The instrument used to measure wind speed is a(n)
.
5. The amount of water vapor in the air is
.
a. When air is
, it holds the maximum amount of water
vapor possible at that
.
b.
is the amount of water vapor in the air compared to
the maximum amount of water vapor the air can hold at that temperature.
c. Relative humidity is reported as a(n)
.
6. When air near the ground becomes saturated, the water vapor condenses into a
liquid and forms
.
a. If the temperature is below 0?C, ice crystals, referred to as
, form.
b. The temperature at which air becomes fully saturated because the temperature decreases while the amount of moisture stays constant is
the
.
Copyright ? Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
10
Weather
Name
Date
Class
Lesson Outline continued
7. As warm air rises in the atmosphere, it
.
a. When the air cools enough that the droplets of water form.
is reached, small
b. atmosphere.
are water droplets or ice crystals suspended in the
c.
is a cloud that forms near Earth's surface.
d.
clouds are flat, white, and layered.
e. altitude.
clouds are fluffy and are present at 2,000 to 6,000 m
f. altitude.
clouds are wispy and are present above 6,000 m
8. atmosphere.
is water, in liquid or solid form, that falls from the
a. Precipitation that falls as liquid water is
.
b. Precipitation that is solid crystals of ice is
.
c. Precipitation that starts as snow and then melts and freezes again is
called
.
d.
is precipitation formed when ice pellets rise and fall
within a cloud, adding new layers of ice during each cycle.
9. The
is the series of natural processes in which water
continually moves among oceans, land, and the atmosphere.
a. Water enters the atmosphere as water vapor when liquid water on Earth's
surface
.
b. As water vapor cools, it
, forming liquid water.
c. Clouds produce water falls to Earth's surface.
, which is when liquid or frozen
Copyright ? Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Weather
11
Name
Content Practice A
Describing Weather
Rain
Snow
Cloud droplets Warm Raindrops
Warm
Ice
Cloud
crystals droplets
Cold
Snowflakes
Cold
Date
Class
LESSON 1
Sleet
Ice
Cloud
crystals droplets
Warm Raindrops
Cold
Hail
Cloud droplet
Ice crystal
Hail Warm
Directions: Use the diagram to answer each question.
Question
Rain
Snow
Sleet
Hail
What form is the water in when it is in the clouds-- liquid or solid?
What is the air temperature near the clouds--warm or cold?
What is the air temperature near Earth's surface--warm or cold?
What is the form of precipitation that falls-- liquid or solid?
How are rain, snow, sleet, and hail part of the water cycle?
What role does temperature play in the type of precipitation that develops?
Copyright ? Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Weather
13
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