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Reading Comprehension Worksheets
Solar System
Mercury, the Speedy Planet

Solar System
Solar System


Mercury, the Speedy Planet
Print Mercury, the Speedy Planet Reading Comprehension with Fifth Grade Work

Print Mercury, the Speedy Planet Reading Comprehension with Sixth Grade Work

Print Mercury, the Speedy Planet Reading Comprehension

Reading Level
     edHelper's suggested reading level:   grades 5 to 6
     Flesch-Kincaid grade level:   5.51

Vocabulary
     challenging words:    probe, revolution, atmosphere, orbit, credit, core, rotate, gravity, magnetic, however, inner, photo, nearly, crashed, poles, friction
     content words:    But Mercury


Mercury, the Speedy Planet
By Cindy Grigg
  

1     Photo credit: NASA. Comparing the size of the four inner planets, from left to right: Mercury, Venus, Earth, and Mars.
 
2     Mercury is our smallest planet. It is a little larger than Earth's moon and only about one-third the size of Earth. Mercury's smaller size means it has less gravity than Earth does. If you weigh one hundred pounds on Earth, you would only weigh thirty-eight pounds on Mercury.
 
3     Each planet moves around the sun in a path called an orbit. The time it takes a planet to make one orbit or revolution around the sun is called a year. Earth makes one orbit in about 365 days, a year on Earth. Mercury's year is only 88 days. Mercury is the speediest planet, orbiting at a speed of about 106,000 mph! Mercury was named for a Roman god. The Roman god Mercury was a speedy messenger, usually depicted with a winged hat and wearing sandals with wings so he could fly. Because the planet Mercury crossed the night sky so quickly, it was given this name.

Paragraphs 4 to 7:
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Solar System
             Solar System


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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