Worksheets and No Prep Teaching Resources
Worksheets and No Prep Teaching Resources
Reading Comprehension Worksheets
Clouds
Weather
Controlling the Weather

Clouds
Clouds


Controlling the Weather
Print Controlling the Weather Reading Comprehension with Sixth Grade Work

Print Controlling the Weather Reading Comprehension


Reading Level
     edHelper's suggested reading level:   grades 6 to 8
     Flesch-Kincaid grade level:   6.26

Vocabulary
     challenging words:    anti-aircraft, much-needed, propane, hard-earned, generate, long-term, modification, successful, smog, recreation, rockets, condense, unknown, opening, depend, present


Controlling the Weather
By Cindy Grigg
  

1     People depend on rain. Rain brings water for crops and for drinking. We use water to generate electricity. We bathe in it, swim in it, and use it for boats and recreation. For thousands of years, people have depended on the weather. Without enough rain, crops couldn't produce enough food. Native tribes had "medicine men" who sometimes did dances or other rituals to try to make it rain. Hucksters have promised rain in return for a town's hard-earned cash. These con men would put on a show, collect their money, and skip town. Today, scientists are looking at ways to control weather.
 
2     Since the late 1940s, cloud seeding has been used to enhance rainfall. For seeding to work, there must be storm clouds present in the air. Then silver iodide crystals are sprayed into the clouds. Sometimes propane, dry ice, or other chemicals are used. The chemicals cool the cloud. This causes the water vapor to condense. Rain falls. 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.
 
3     Now many types of weather modification experiments are being done. Some have tried to cause heavier snowfalls on the mountains in California. In the summer when the snows melt, the water is used in homes and also to generate electricity. It has been estimated that snowfall has been increased by twenty percent in some cases. Other projects try to bring much-needed rain to drought-stricken Africa. In the U.S., cloud seeding has been used to reduce the size of hailstones, to clear fog from airports, and to bring snow to ski resorts. A team in Germany has experimented with lasers to do the job of cloud seeding.

Paragraphs 4 to 5:
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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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