Earth's Changing Surface Crossword

A large natural stream of water flowing in a channel to the sea, a lake, or another stream.
A deep ravine between cliffs often carved from the landscape by a river.
The process in which gravity, water, ice, and wind move sediment from one place to another on the earth's surface.
A low area of land between hills or mountains
Where a river meets a lake, valley, or ocean.
When two plates come together
The action of surface process that removes soil, rock, or dissolved earthquake
The bottom of a river
Made smaller by squeezing
The layer below the earth's crust
The lowest part of a mountain
Where a river begins
To keep from moving
The sides of a river
Melted rock inside the earth
The highest part of a mountain
A hill formed by wind
Magma that flows onto earth's surface
Volcanic ash that deposits on the ground
The grinding down of one rock to another