Name
Date
Clouds
Class
Chapter 14 Lesson 2
Understanding Main Ideas
Answer the following questions in the spaces provided.
1. Clouds form when water vapor in the air condenses to form
2. What two conditions are required for cloud formation?
3. Ice deposited by the atmosphere on a surface that is below freezing is called ___________________.
4. ___________________ clouds are fluffy, towering clouds with flat tops that often produce
thunderstorms.
5. Describe altostratus clouds.
6. Fog is the name for
.
Building Vocabulary
Match each term with its definition by writing the letter of the correct definition in the
right column on the line beside the term in the left column.
7. ___ dew point
a. whispy, feathery clouds that form at high altitudes
8. ___ cirrus
b. the temperature at which condensation begins
9. ___ cumulus
c. clouds that form in flat layers close to the ground
10. ___ stratus
d. clouds that look like cotton and form less than 2 km
above the ground
Name
Date
Class
Clouds
Chapter 14 Lesson 2
Write the letter of the correct answer on the line at the left.
1. ___ Which two conditions are required for
cloud formation?
A high humidity and warm temperatures
B high humidity and cool temperatures
C warm temperatures and the presence of
particles
D cool temperatures and the presence of
particles
2. ___ Which type of cloud often indicates
that a storm is on the way?
A cirrus
B cirrocumulus
C nimbostratus
D stratus
3. ___ What is the dew point?
A the temperature at which condensation
begins
B the temperature at which frost turns
to dew
C the temperature present in a cloud
D the temperature present when a storm
begins
4. ___ The sky is mostly blue, with some
high, thin, feathery clouds. Which type
of weather is most likely to occur?
A light drizzle
B heavy precipitation
C fair weather
D thunderstorms
Fill in the blank to complete each statement.
5. Wispy, feathery clouds are ____________________ clouds.
6. Cumulonimbus clouds usually result in ____________________.
7. ____________________ clouds form in low, flat layers.
8. Clouds that look like fluffy, rounded piles of cotton are ____________________ clouds.
9. Clouds are formed by the process of ____________________.
10. Clouds that form very near the ground are called ____________________.