World Rivers

What does friction produce?

• light
• sound
• heat
• gravity

The rougher the surface, the faster an object will travel over the surface.

• True
• False

When Izzy and Zoe pull on the rope with the same amount of force, the forces are ________.

• increased
• unbalanced
• balanced
• decreased

A force has both strength and ________.

• power
• direction
• color
• balance

Why did Izzy fall when playing tug of war?

• he tripped
• unbalanced forces
• balanced forces
• he was pushed

Which one is balanced?

• top

• bottom

• both

What river is the longest river in the world?

• Ob River

• Nile River

• Yellow River

• Mississippi River

Where is the Yellow River?

• China

• Australia

• North America

• Europe

What is the starting point of a river called?

• Mouth

• First

• Start

• Source

Where does a river pour (throw up) into the ocean or large lake?

• Nose

• Source

• Drainage Basin

• Mouth