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Cloud Types

Cloud Types. Grades 4. Learner Expectations. Grade 4 Weather: Select Cloud The learner will be able to identify cloud types. In this lesson you will:. Learn about the 3 types of clouds. Choose and write a report about one cloud type. What are clouds?.

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Cloud Types

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  1. Cloud Types Grades 4

  2. Learner Expectations • Grade 4 • Weather: Select CloudThe learner will be able to identify cloud types.

  3. In this lesson you will: • Learn about the 3 types of clouds. • Choose and write a report about one cloud type.

  4. What are clouds? • A cloud is made up of tiny water droplets and/or ice crystals, a snowflake is a collection of many ice crystals, and rain is just liquid water.

  5. Cloud Names • Names of specific types of clouds are created by combining the name of the cloud's shape with the name of the cloud's height.

  6. Cumulus Stratus Cirrus Clouds There are 3 main types of clouds: • Cumulus or fluffy clouds • Stratus or layered clouds • Cirrus or thin feathery clouds

  7. Cirrus

  8. Cirrus • The word cirrus comes from a Latin word and means a tuft or curl of hair. Cirrus clouds are very wispy and feathery looking.

  9. Cirrus • The long stringy cirrus clouds are called "mares' tails."

  10. Cirrus Clouds • Cirrus generally occur in fair weather and point in the direction of air movement at their elevation.

  11. Cirrus Clouds

  12. Low Clouds = Stratus • Stratus • Stratocumulus • Nimbostratus

  13. Stratus Clouds Low clouds are of made of water droplets. However, when temperatures are cold enough, these clouds may also contain ice particles and snow.

  14. Stratus Clouds

  15. Stratus Clouds

  16. Stratus The word stratus comes from the Latin word that means "to spread out." Stratus clouds are horizontal, layered clouds that stretch out across the sky like a blanket.

  17. Stratus Clouds • Stratus Clouds stretch across the sky in low, large flat layers. They resemble fog, but they do not reach the ground. They often produce mist or drizzle.

  18. Vertically Developed CumulusClouds • Fair weather cumulus have the appearance of floating cotton and have a lifetime of 5-40 minutes. The word cumulus comes from the Latin word for a heap or a pile. Cumulus clouds are puffy in appearance. They look like large cotton balls.

  19. Cumulus Clouds • Harmless fair weather cumulus clouds can later develop into towering cumulonimbus clouds associated with powerful thunderstorms.

  20. Cumulus • The clouds that produce heavy thunderstorms in summer are a form of cumulus clouds called cumulonimbus. Cumulonimbus clouds may extend upward for hundreds of meters.

  21. Fair Weather Cumulus

  22. Writing Activity: • Write a paragraph about one type of cloud. Include 3 or more facts about the cloud.

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