Worksheets and No Prep Teaching Resources
Worksheets and No Prep Teaching Resources
Reading Comprehension Worksheets
Soil
Soil Horizons

Soil
Soil


Soil Horizons
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Print Soil Horizons Reading Comprehension

Reading Level
     edHelper's suggested reading level:   grades 3 to 5
     Flesch-Kincaid grade level:   4.39

Vocabulary
     challenging words:    organic, profile, topsoil, vital, makeup, soil, lies, material, erosion, easily, microscope, natural, land, roots, affects, decompose


Soil Horizons
By Cindy Grigg
  

1     Soil covers Earth's land. It is a vital natural resource. Soil is a thin layer in which plants can grow.
 
2     Soil is not all the same. It has different layers. The layer on top is made of humus (HYOO-muss). Humus is dark brown or black. It is made of the remains of plants and animals that were once alive. As they rot, they become part of soil. This top layer of soil is called the O horizon. O stands for organic. Organic matter came from living things. This layer may be only about one or two inches deep. The O horizon is "O" so important for having healthy soil.
 
3     The second layer from the top is called the A horizon. It is a mixture of humus and small bits of minerals. It is dark colored, too, but not as black as humus. People often call this layer "topsoil." In the A horizon, you will find plant roots. Living things like earthworms, ants, and beetles make their homes here. Microorganisms like bacteria and fungi are found here, too. Microorganisms are too small to see without a microscope. They break down, or decompose, organic materials. They are important to healthy soil. This layer can be eight to twelve inches thick. The A horizon is "A" home to living things.

Paragraphs 4 to 9:
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Soil
             Soil


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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