Show:
River System
Tributaries
Watersheds
Divides
100
Where do rivers usually begin?
They begin in a mountain.
100
What are tributaries?
Tributaries are streams or smaller rivers that flow into a main river. 
100
What is a watershed?
A watershed is a piece of land that contains a river system.
100
What is a divide?
A divide is what separates a watershed from becoming a lake.
200
How do rivers/streams begin?
They begin when snow melts and flows off a mountain to make a stream. 
200
What is a River System?
A river system is a river with all its tributaries.
200

Can large rivers still be tributaries?

Large rivers can still be tributaries to even larger rivers.

200
Is a watershed a stream?
No, its a piece of land. 
300
How do streams turn into rivers?
Streams turn into rivers when they join in with other streams and flow together. 
300
What direction do tributaries flow?
They flow downward.
300
How can you identify a river's watershed on a map?
You can draw an imaginary line around the region of a river system. 
300
What does a divides do?
Divides separate streams from going the same speed and direction.
400
What is another name for the Rio Grande?
"Big River"
400
What force moves a tributary into the direction it goes?
Gravity 
400

The water in a river system ________ drains into a main river.  

1) never   2) sometimes  3) rarely  4) always

4) always    

400
What is one example of divide?
One example of a divide is The Great Continental Divide. 
500
Where does the Rio Grande start?
It starts in the Rocky Mountains of Colorado when the snow melts. 
500
What are some local tributaries?
The Des Moins and Iowa rivers are tributaries to the Mississippi River.
500
What is an example of a large river being a tributary to a larger river?
The Missouri and Ohio River are both big rivers and they both flow into the Mississippi River. 
500
What is one of the longest divides in North America?
The Great Continental Divide