EducationVisual Classification of Soil
A SelectSmart.com Flowchart by soilmechanics12
To print this page, right mouse click, open "Print preview", "Print" or a similar option depending on your browser, then use the controls to size this page appropriately. Go to SelectSmart.com/flowchart/flowchart.php?id=1000286 for the original version of this flowchart. Find and create other free decision making tools at SelectSmart.com. Use our interactive selectors to find the best college, best career, right religion, most appropriate dog breed, best college major and more.  
SelectSmart.com SelectSmart.com
Make Your Own Flowchart
SelectSmart.com. All Rights Reserved.
Show soil classification

               
Put a sample of soil into your hand. Can half of the soil particles can be seen with the naked eye?
YES
The soil is coarse grained
Do 50% or less of the coarse grains pass through sieve number 4?
 
 

NO




NO

YES



Wet the soil and work it in your hand. Is your hand stained?
YES
The soil's main component is clay
The soil's main component is sand
The soil's main component is gravel
 


NO







 
The soil's main component is silt
Determine whether the soil is wet, moist or dry
Observe the particle shape (angular, sub-angular, sub-rounded or rounded)
Observe the colour of the soil









 
 
If the soil contains >12% of a secondary component, the soil has a dual/multiple name
If the soil contains 5-12% of a secondary component, it has 'some' of it
If the soil contains <5% of a secondary component, it has 'a trace of' it