Water
Rocks
Weathering
Rivers
100
What is the largest river in the United States?
The Mississippi River
100
Rocks are broken into smaller pieces the process of _______
erosion
100
Over time, erosion and weathering work together to wear away the _____
Land
100
A river and the waterways that join into it are called a _______
River system
200
When a river empties into the ocean, sediments form a flat land called a ______
Delta
200
The materials carried by moving water are called ______
sediments
200
______ is a process by which rock is broken into smaller pieces.
Weathering
200
A fast-moving river can carve a deep ______ with steep sides
Valley
300
Rainwater trickles down the slope and several trickles form a ______.
Brook
300
Rocks are more easily broken down by ______ _______.
moving water
300
_______is the process by which broken-down rock material is moved from place to another by water, wind, and ice.
Erosion
300
When a river runs into the oven it _____ down
slows