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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