What is the exact difference between mud and sand?

elburcher

mud Pronunciation: (mud), [key] —n., v., mud•ded, mud•ding. —n. 1. wet, soft earth or earthy matter, as on the ground after rain, at the bottom of a pond, or along the banks of a river; mire. sand Pronunciation: (sand), [key] —n. 1. the more or less fine debris of rocks, consisting of small, loose grains, often of quartz. Jun 11 06, 7:24 AM