Access Prior Knowledge Lesson 4: How do clouds form?. Opening Activity O pen Science textbook to page 212. Open Science workbook to page 68A to review home learning. Open Science folder to review vocabulary words and outline for the chapter. - PowerPoint PPT Presentation
Access Prior Knowledge Lesson 4: How do clouds form? Opening Activity O pen Science textbook to page 212. Open Science workbook to page 68A to review home learning. Open Science folder to review vocabulary words and outline for the chapter. Open Science journal and answer the following question: 1. What are the steps to the water cycle? Review Content Cards and Q-Cards in bin, sharing with partners quizzing each other quietly. Log in to clickers using student ID number. Be ready to review home learning when timer goes off. Don't forget to write your home learning in your agenda page 69A.
Transcript
Access Prior KnowledgeLesson 4: How do clouds form?
Opening ActivityOpen Science textbook to page 212.Open Science workbook to page 68A to review home learning.Open Science folder to review vocabulary words and outline for the chapter.Open Science journal and answer the following question:
1. What are the steps to the water cycle?
Review Content Cards and Q-Cards in bin, sharing with partners quizzing each other quietly.Log in to clickers using student ID number.Be ready to review home learning when timer goes off.
Don't forget to write your home learning in your agenda page 69A.
1 Water droplets and ice crystals make upclouds.
Yes
No
Do you agree with the statement?
2 Stratus clouds are seen higher thanaltocumulus clouds.
Yes
No
Do you agree with the statement?
3 Fog is a type of cloud at ground level.
Yes
No
Do you agree with the statement?
4 Sleet is the same as hail.
Yes
No
Do you agree with the statement?
Temperature and Pressure
Clouds may form in many shapes and sizes when water vapor changes into small ice crystals or tiny drops of water.
If the air temperature near the cloud is high, the cloud will be made of water drops, but if it’s low, it will be made of ice crystals.
Many clouds form when air moves up to areas with less air pressure. Since there is less pressure, air expands and cools forming ice crystals or droplets.
Even in the summer time the air temperature is cold forming ice crystals.
Second paragraphpg. 212
Types of Clouds
Cirrus clouds are high-altitude clouds that form above 6,000 meters. They are thin and white.
Vertical clouds grow up and down. They have air rising in them. They are sometimes called thunderheads because often cause thunderstorms.
Altocumulus clouds are mid-altitude clouds that begin between 2,000 and 7,000 meters above the ground.
Stratus clouds are low-altitude clouds that form less than 2,000 meters above the ground.
Fog is a cloud at ground level that can form on clear, cool nights with no wind.
PrecipitationMost rain starts as snow because the temperature high above the ground is usually below 0°C.
If it is below 0° it will fall as snow and if the air is warmer than 0°C, the ice crystals will melt and fall as rain.
The ice crystals melt as they fall through a layer of warm air. But if the air near the ground is very cold, rain can freeze before it hits the ground creating frozen raindrops called sleet.
Second paragraphpg. 214
Hail FormationThe wind blows raindrops back up into freezing air at the top of a cloud, making a small piece of ice.
Then the ice is blown through the cloud many times making layers of water freeze on it.
Finally, it becomes too heavy for the wind to carry it back up, and it falls as a hailstone to the ground.
