vocabulary - science - Chapter 6


A feature on Earth's surface


landform


The highest of Earth's landforms. Mountains often have steep sides and pointed tops.


mountain


An area of low land lying between hills or mountains.


valley


The process that causes rocks to crumble, crack and break.


weathering


A mound of wind blown sand.


sand dune


Wide flat lands


plain


A large stream of water that flows across the land.


river


The carrying away of weathered materials.


erosion


A large mass of ice in motion.


glacier


A violent storm with strong winds and heavy rains


hurricane


A violent, whirling wind that moves across the ground in a narrow path


tornado


A great rush of water over usually dry land.


flood


A sudden movement in the rocks that make up Earth's crust.


earthquake


An opening in the surface of Earth


volcano


Landforms that are shorter and rounder than mountains.


hills


Flat-topped hills or mountains.


mesas


A deep, narrow valley with steep sides


canyon


Very large bodies of salt water that cover three-forths of Earth's surface.


oceans


The part of Earth where the ocean meets the land.


coast


A part of a lake or ocean that extends into the land.


bay