Clouds & Precipitation Clouds & Precipitation Notes/VocabularyNotes/Vocabulary

pgs. D44-D46pgs. D44-D46

Chapter 10 Lesson 5Chapter 10 Lesson 5

How do clouds form?How do clouds form? when warm air & cold air meet, cold air pushes up when warm air & cold air meet, cold air pushes up

the warm air and a cloud can formthe warm air and a cloud can form when air rises and cools, the water vapor in the air when air rises and cools, the water vapor in the air

condenses into tiny water droplets and forms a condenses into tiny water droplets and forms a cloudcloud

If the temperature is below the freezing point, a If the temperature is below the freezing point, a cloud will form out of tiny ice crystalscloud will form out of tiny ice crystals

In order for water vapor to condense, it must have In order for water vapor to condense, it must have something to attach to. Do you know what that something to attach to. Do you know what that something is? (answer on the next slide)something is? (answer on the next slide)

dustdust

1. stratus clouds1. stratus clouds A cloud that forms a blanket-like layerA cloud that forms a blanket-like layer Stratus:Stratus: It's Latin for "covering" or It's Latin for "covering" or

"blanket."  Stratus clouds look like a flat "blanket."  Stratus clouds look like a flat blanket in the sky.blanket in the sky.

When there is an overcast the entire sky is When there is an overcast the entire sky is covered in clouds.covered in clouds.

2. cumulus clouds 2. cumulus clouds

a puffy cloud that appears to rise up from a a puffy cloud that appears to rise up from a flat bottomflat bottom

Cumulus:Cumulus: In Latin, this means "heap."  In Latin, this means "heap."  Cumulus clouds look like a heap of cotton Cumulus clouds look like a heap of cotton balls or whipped cream.balls or whipped cream.

3. 3. cirrus clouds cirrus clouds

a high altitude cloud with a featherlike a high altitude cloud with a featherlike shape, made of ice crystalsshape, made of ice crystals

Cirrus:Cirrus: It's Latin for "curl."  Cirrus clouds It's Latin for "curl."  Cirrus clouds look like curls of white hair.look like curls of white hair.

4. Nimbo4. Nimbo or or nimbusnimbus

prefix or suffix added to the name of a cloud prefix or suffix added to the name of a cloud that means precipitaion came from itthat means precipitaion came from it

NimboNimbo or or nimbusnimbus might be used with might be used with cumuluscumulus or or stratusstratus to indicate a cloud formation that is to indicate a cloud formation that is producing rain. These clouds could be either producing rain. These clouds could be either cumulonimbuscumulonimbus which would be a puffy, vertically- which would be a puffy, vertically-rising rain cloud or rising rain cloud or nimbostratusnimbostratus which would be which would be a sheet or flat-looking rain cloud.a sheet or flat-looking rain cloud.

5. 5. fog fog

a cloud at ground level a cloud at ground level

6. 6. precipitation precipitation

any form of water particles that falls from the any form of water particles that falls from the atmosphere and reaches the ground atmosphere and reaches the ground

hail forms in tall cloudshail forms in tall clouds

**check out this website after reading pgs. D40-D49** http://teacher.scholastic.com/activities/wwatch/index.htm Click on “Observe” and then see if you can pass the quiz.

7. transpiration7. transpiration

process where leaves release water vapor process where leaves release water vapor into the airinto the air

Cloud GameCloud Game

**Play the cloud game**http://www.cityofportsmouth.com/school/dondero/msm/weather/game.html