Worksheets and No Prep Teaching Resources
Worksheets and No Prep Teaching Resources
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Clouds
Weather
Seeding the Clouds

Clouds
Clouds


Seeding the Clouds
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Print Seeding the Clouds Reading Comprehension


A Short Reader

Reading Level
     edHelper's suggested reading level:   grades 3 to 5
     Flesch-Kincaid grade level:   4.12

Vocabulary
     challenging words:    depend, cases, snowfall, people, supplies, vapor, rockets, bathe, sprayed, rain, need, whenever, power, cause, clear, weather
     content words:    In Germany


Seeding the Clouds
By Cindy Grigg
  

1     People depend on rain. We need water to drink. We need water to grow our food. We use water to make some of our electric power. We use it for boats to move supplies from place to place. We bathe in it. We swim in it. For thousands of years, people have depended on the weather. Now people are looking for ways to control weather.
 
2     Since the late 1940s, scientists have been using cloud seeding. Storm clouds must already be in the air for cloud seeding to work. Then chemicals such as silver iodide crystals are sprayed into the clouds. Sometimes propane or dry ice is used. The chemicals cool the cloud. This causes the water vapor to condense. Rain falls. Seeding the clouds causes more rain to fall than would have fallen without using the chemicals.
 
3     Cloud seeding can be done from the ground. Canisters of chemicals can be shot out of anti-aircraft guns. Chemicals can be sprayed from machines on the ground. Airplanes and sometimes rockets are also used to spray the chemicals into clouds from the air.

Paragraphs 4 to 5:
For the complete story with questions: click here for printable



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Clouds
             Clouds


Weather
             Weather


Science
             Science


    Careers in Science  
 
    Caring for Earth  
 
    Clouds  
 
    Dinosaurs  
 
    Earth's Land  
 
    Earth  
 
    Earthquakes  
 
    Electricity  
 
    Energy  
 
    Erosion  
 
    Food Pyramid  
 
    Food Webs and Food Chain  
 
    Forces and Motion  
 
    Fossils  
 
    Health and Nutrition  
 
    How Things Work  
 
    Landforms  
 
    Life Science  
 
    Light  
 
    Magnets  
 
    Matter  
 
 
    Moon  
 
    Natural Disasters  
 
    Photosynthesis  
 
    Plant and Animal Cells  
 
    Plants  
 
    Rocks and Minerals  
 
    Science Process Skills  
 
    Scientific Notation  
 
    Seasons  
 
    Simple Machines  
 
    Soil  
 
    Solar System  
 
    Sound  
 
    Space and Stars  
 
    Sun  
 
    Tsunami  
 
    Volcanoes  
 
    Water Cycle  
 
    Water  
 
    Weather  
 



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