Clouds March 11, 2010.

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Presentation transcript:

Clouds March 11, 2010

Clouds 1. _Clouds- are a collection of millions of tiny water droplets or ice crystals

How do clouds form? 1. Warm air rises and cools 2. Water vapor is added to the air. 3. Air eventually becomes saturated. 4. Water vapor condenses on smoke, dust, salt, and other small particles_high in the air. 5. Millions of droplets of liquid water collect to form a cloud.

Root Words 1. cumulus-puffy, flat-bottomed 2. nimbus-(nimbo)- heavy rain or rain cloud 3. stratus-layered 4. cirrus-lock or curl 5. High-_cirro 6. Middle- alto 7. Low- strato

Cumulus

Stratus

Cirrus Clouds

Clouds Cumulus Stratus Cloud Appearance How the cloud forms Weather indication Cumulus Puffy, white clouds with flat bottoms Form when warm air rises Fair weather. When the cloud gets larger, may produce thunderstorms=Cumulonimbus Stratus Form in layers, Cover large areas, Sometimes blocking the sun Caused by a gentle lifting of a large body of air into the atmosphere Nimbostratus- Dark stratus clouds that produce light to heavy, continuous rain

Cloud Cloud Appearance How the cloud forms Weather Indication Cirrus Thin, feathery, curl white clouds found at high altitudes Form when the wind is strong May indicate bad weather is coming if the clouds thicken and lower in altitude

Cloud Project 1. Cut out the 6 clouds, staple 2 blue sheets of paper together 2. Use page 41 in your book as a guideline and label the height (altitude) on the right hand side of your paper. 3. Glue the clouds in the correct altitude. Add lightning to the cloud that may produce thunderstorms, also shade in the cloud that may be gray because it produces rain. 4. At the top of your paper, write the following root words and their meaning. Strato, alto, cirro, cumulus, stratus, cirrus, and nimbo

Word Bank Strato Alto Cirro Puffy, flat bottomed Cirrus Layered Nimbus