Matching Pairs River characteristicsOnline version Complete by José Torrecillas Baena 1 MOUTH 2 SOURCE 3 TRIBUTARY 4 DISCHARGE 5 LENGHT 6 COURSE 7 REGIME 8 MEANDER The distance from the source to the mouth. A river that flows into another river. The path of the river. Bends in the river. The place where the river ends. Is the amount of water. Is the change in discharge. Can be stable or variable. The place where the river begin.