Larger than clay but smaller than sand, pieces of silt are moved by the fast-moving Mississippi and settle at the bottom of its river banks.

The thick particles of silt were moved by the wind and created a sludge pile at the delta end.

After the New Orleans floodwater went away, huge piles of silt were left in sediment mounds around the buildings.

The science teacher explained that silt is a dust-like sediment that water, ice, and wind transport and deposit into other places.

Many species of frog hibernate in muddy silt deposits at the bottom of riverbeds.