Both river basins and watersheds are areas of land that drain to a particular water body, such as a lake, stream, river or estuary.
In a river basin, all the water drains to a large river.
The term watershed is used to describe a smaller area of land that drains to a smaller stream, lake or wetland.
There are many smaller watersheds within a river basin.
The video describes a River Basin in the Amazon. Be sure that after the video you know what a river basin is and what the general charateristics are.
Be sure to take notes in you science notebook. ( you may only right what is in red)