Download Weather Test Study Guide

Name: _________________________________________ Date: _______________ Page: _______________
Weather Test Study Guide
I.
Water Cycle
Using the diagram to the right, label the parts of the water cycle.
1.
2.
3.
4.
5.
6.
II.
____________________________
____________________________
____________________________
____________________________
____________________________
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Precipitation
6
7. Precipitation forms when water droplets in the clouds become too _________ to stay
afloat and fall to the ground.
8. This type of precipitation begins frozen and then melts before hitting Earth’s surface
9. This type of precipitation begins frozen, melts into rain as it falls and freezes when it hits
something on the ground that colder.
10. This type of precipitation begins frozen, lands frozen, and lands as a crystal.
11. This type of precipitation begins frozen, partially melts, then refreezes into ice pellets
before landing.
12. This type of precipitation is formed by ice being tossed around in the clouds with winds
and causing it to grow in size. The ice pellets finally get too large to stay afloat and fall
in frozen form.
III.
Humidity
13. What is humidity? __________________________________________________________________
14. The warmer the air is, the _____________ water vapor it can hold.
15. A ______________ ______________ is used to measure relative humidity.
16. Using your relative humidity chart in your ILL, calculate the relative humidity of a dry
bulb temperature of 18 degrees C with a wet bulb temperature of 15 degrees C.
IV.
Air Masses and Fronts
17. Warm air is less ___________ than colder air and __________ in the atmosphere. Rising
moist air causes areas of ___________ pressure, creates clouds, and is associated with
________ weather.
Name: _________________________________________ Date: _______________ Page: _______________
18. Cool air is more ______________ than
warmer air and ___________ in the
atmosphere. Sinking dry air causes areas
of _________ pressure, evaporates clouds,
and is associated with _____________
weather.
19. Match the following fronts with their descriptions:
_____ A warm air mass overtakes a cooler air mass leading
to a long period of rain
_____ A warm air mass is trapped between two colder air masses
_____ A cold air mass overtakes a warmer air mass leading to
stormy weather
_____ A warm air mass and a cold air mass meet but neither move
leading to several days of consistent weather
V.
a. cold
b. warm
c. stationary
d. occluded
Winds
20. Winds are caused by air molecules that move from an area of ___________ pressure
toward an area of __________ pressure.
21. The _____________ ____________ describes how winds curve toward the equator.
22. Explain a sea breeze: ______________________________________________________________
23. Explain a land breeze: ______________________________________________________________
VI.
Clouds
24. What part of the water cycle is where clouds are created? __________________________
25. What type of wispy cloud usually indicates that the weather will change within 24
hours? ___________________
26. What type of cloud is associated with thunderstorms? _______________________________
VII.
Severe Weather
27. Where do hurricanes form? _________________________________________________________
28. What are two dangers from hurricanes?
____________________________________________________________________________________
____________________________________________________________________________________
Name: _________________________________________ Date: _______________ Page: _______________
29. Thunderstorms are caused by quickly rising ____________, ____________ air.
30. What are two things produced by a bolt of lightning? _______________________________
VIII.
Weather Tools
31. Match the tool to its definition.
_____ radar
a. measures air pressure
_____ weather balloon
b. takes measurements in a single location on
land (temperature, wind speed, etc.)
_____ ground station
c. sends information to Earth from orbit
_____ satellite
d. measures wind speed
_____ weather planes & ships
e. takes measurements over a large area and
from different altitudes
_____ anemometer
f. measures relative humidity
_____ psychrometer
g. measures temperature
_____ barometer
h. takes measurements along a path; can be
used to gather information from storms
_____ thermometer
i. one type is Doppler; detects air motion and
precipitation