Transcript What is weather?

What is weather?
A. The present state of the
atmosphere
B. Tidal patterns
C. A measure of how clean the air
is
What causes water to evaporate
in the air?
 A. Heat from the moon
 B. Cold winds over the ocean
 C. Heat from the sun
How does cold air hold water?
A. Water molecules fit into spaces between
air molecules
B. Water is filtered into an invisible tube
C. The ozone layer holds our water
Humidity changes depending on
A. Clouds
B. Wind
C. Temperature
Humidity changes depending upon:
A. Clouds
B. Wind
C. Temperature
Which of these air temperatures can
hold the most water?
A. Warm air
B. Cool air
C. Freezing cold air
When are air molecules moving their
slowest?
A. At colder temperatures
B. At warmer temperatures
C. When it’s dark outside
What do you call it when water vapor
molecules join together?
A. Compilation
B. Condensation
C. Concentration
The dew point is the temperature at
which:
A. The air is fully saturated with water vapor.
B. Plants conduct photosynthesis.
C. The clouds are ready to produce rain.
What does it mean if the relative
humidity is 100%?
A. There is no water vapor in the air.
B. The air is partly full of water vapor.
C. The air is totally full of water vapor.
When do storm clouds develop?
A. When humid air rises and cools, so that
the moisture inside condenses
B. When space dust floats into our
atmosphere
C. When Zeus is angry
What causes lightning?
A. An electrical outlet
B. Large amounts of rain
C. Differences in electrical charge inside a
cloud
How hot is lightning?
A. 30,000 degrees Celsius
B. 3,000 degrees Celsius
C. 300 degrees Celsius
Which of these do you always
observe first?
A. Thunder
B. Lightning
C. Neither—they happen at the same time
What is the period of time between
the lightning and thunder called?
A. The flash-to-bang time
B. The bang-to-flash time
C. Naptime
What causes thunder?
A. Humid air turning into precipitation too
quickly
B. Clouds falling from the sky
C. Rapid expansion of air due to the heat of
lightning
When the flash-to-bang time is
under 3 seconds, what should you
do?
A. Head for shelter
B. Put on your raincoat
C. Do a rain dance
If you are not close to shelter, what
should you do then?
A. Climb a tree
B. Crouch low to the ground in an open space
C. Jump into the swimming pool
What’s the safest sport to play
during a thunderstorm?
A. Golf
B. Water polo
C. Ping pong, indoors!
Who is famous for performing a
dangerous lightning experiment?
A. Isaac Newton
B. Benjamin Franklin
C. Thomas Edison
Cobb Curriculum Standards
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Element: S4E3c Cloud Formation
Investigate how clouds are formed.
Element: S4E3d Water Cycle
Explain the water cycle (evaporation,
condensation, and precipitation).
 Element: S4E3e Precipitation and Sky Conditions
 Investigate different forms of precipitation and sky
conditions (rain, snow, sleet, hail, coulds, and fog).