Which way do rivers always flow?
Downward towards sea level.
What is a river system?
Describes all different parts of the river system along its route.
What makes up a river system:
Source, mouth, watershed, tribitery, lake.
What is a source?
Where the river begins.
What is the mouth of the river?
Where the river joins the sea.
What is a watershed?
An area of high ground. Water flows down from the watershed to form a river.
What is a Tributary?
When rivers flow over land and join other rivers.