River Formation and Characteristics

What is the 'source' of a river?

• A river's end

• A river's beginning

• A river's middle part

• A river's widest part

Where does a river's journey usually start?

• High up in mountains and hills

• In the middle of a flat field

• Near the ocean

• Underground caves

What can be a source of a river?

• Only from natural springs

• Only from melting snow

• From rainwater and melting snow

• From ocean water

What is the first part of a river's journey called?

• The lower course

• The middle course

• The river mouth

• The upper course

What happens to the water in the upper course of a river?

• It flows over rocks and boulders, dragging them along

• It slows down and becomes very calm

• It forms a big lake

• It disappears underground

If the rock in a river's path is soft, what can the water wear away to create?

• Small hills

• Huge valleys and canyons

• New lakes

• Flat plains

How are waterfalls formed?

• When the river flows very slowly

• When hard rock meets soft rock

• When the river joins the ocean

• When the river bends a lot

What happens to a river when it reaches flatter ground?

• It speeds up a lot

• It goes over a waterfall

• It slows down

• It dries up

What is it called when a river bends and loops through the countryside?

• Meander

• Straighten

• Jump

• Stop

What are small rivers that feed into bigger rivers called?

• Main rivers

• Big rivers

• Ocean rivers

• Tributaries