Drainage Basin Characteristics Crossword

Where the river starts, often a spring or a lake
The area of land drained by a river and its tributaries
The point where two rivers meet
A smaller stream/river which feeds into a larger river channel
The boundary between one drainage basin and another
Where the river ends and meets the sea
What a river (water) flows in
The force of water pushing air into cracks and wearing the rock away
When rocks rub against the river channel, wearing it away
Rocks smashing into each other breaking them down into smaller fragments
When large rocks are pushed along the river bed
When pebble sized rocks are bounced along the river bed