| A | B |
|---|
| smaller rivers which join larger rivers | tributaries |
| the beginning of a river | source |
| the end of a river | mouth |
| the path of a river | channel |
| one action of a river which creates canyons | erosion |
| rich, fertile soil which develops after many years of flooding | silt |
| the river which forms part of the northern border between Texas and Oklahoma | Red River |
| the river which forms the southern border between Texas and Mexico | Rio Grande River |
| the river which forms part of the eastern border between Texas and Louisiana | Sabine River |
