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Up in the clouds …

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Page 1: Up in the clouds …. How are clouds formed? Warm moist air rises because it is less dense. As it rises it cools and becomes more dense so it can’t hold

Up in the clouds …

Page 2: Up in the clouds …. How are clouds formed? Warm moist air rises because it is less dense. As it rises it cools and becomes more dense so it can’t hold

How are clouds formed?

• Warm moist air rises because it is less dense.• As it rises it cools and becomes more dense so

it can’t hold as much water vapor.• Eventually the air reaches dew point when it is

completely full or saturated with water vapor. • At dew point, the water vapor condenses on

particles in the air into water droplets to form clouds.

Page 3: Up in the clouds …. How are clouds formed? Warm moist air rises because it is less dense. As it rises it cools and becomes more dense so it can’t hold

Important Prefixes

• Alto = Middle

• Strato = Low

• Cirro = High

• Nimbus or Nimbo = Precipitation

Page 4: Up in the clouds …. How are clouds formed? Warm moist air rises because it is less dense. As it rises it cools and becomes more dense so it can’t hold

Main Types of Clouds

Stratus Clouds •Form in flat layers•Strato means “spread out”•Usually cover all or most of the sky•Dull, gray color

As stratus clouds thicken, they may produce drizzle, rain, or snow. These clouds are nimbostratus clouds.

Page 5: Up in the clouds …. How are clouds formed? Warm moist air rises because it is less dense. As it rises it cools and becomes more dense so it can’t hold

Main Types of Clouds

Cumulus Clouds •Looks like fluffy, rounded piles of cotton•Cumulus means “heap” or “mass”•Usually indicates good weather

Cumulonimbus clouds are towering clouds with flat tops. They bring thunderstorms.

Page 6: Up in the clouds …. How are clouds formed? Warm moist air rises because it is less dense. As it rises it cools and becomes more dense so it can’t hold

Main Types of Clouds

Cirrus Clouds •Wispy, feathery clouds •Cirrus means “curl of hair”•Form at high levels •Made of ice crystals •Cirrocumulus clouds usually mean a storm is coming.

Page 7: Up in the clouds …. How are clouds formed? Warm moist air rises because it is less dense. As it rises it cools and becomes more dense so it can’t hold

Stratus Cloud (Form in flat layers, uniform and gray)

Page 8: Up in the clouds …. How are clouds formed? Warm moist air rises because it is less dense. As it rises it cools and becomes more dense so it can’t hold

Altostratus Cloud(middle level)

Page 9: Up in the clouds …. How are clouds formed? Warm moist air rises because it is less dense. As it rises it cools and becomes more dense so it can’t hold

Nimbostratus Cloud (Thicker Layers)

Brings drizzle, rain, or snow.

Page 10: Up in the clouds …. How are clouds formed? Warm moist air rises because it is less dense. As it rises it cools and becomes more dense so it can’t hold

Fog(Ground Level)

Page 11: Up in the clouds …. How are clouds formed? Warm moist air rises because it is less dense. As it rises it cools and becomes more dense so it can’t hold

Cumulus Cloud(Fluffy, piles of cotton)

Nice weather

Page 12: Up in the clouds …. How are clouds formed? Warm moist air rises because it is less dense. As it rises it cools and becomes more dense so it can’t hold

Altocumulus Cloud(Middle Level)

Page 13: Up in the clouds …. How are clouds formed? Warm moist air rises because it is less dense. As it rises it cools and becomes more dense so it can’t hold

Cumulonimbus Cloud(Towering with flat tops)

Thunderstorms

Page 14: Up in the clouds …. How are clouds formed? Warm moist air rises because it is less dense. As it rises it cools and becomes more dense so it can’t hold

Cirrus Cloud(High clouds)

Winds

Page 15: Up in the clouds …. How are clouds formed? Warm moist air rises because it is less dense. As it rises it cools and becomes more dense so it can’t hold

Cirrocumulus Cloud (Rows of cotton)

Approaching storm


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