Water
Wind
Ice
Gravity
Waves
100
Rivers, waterfalls, and floodplains are all part of what bigger area of land?
What is a watershed/drainage basin?
100
This is the weakest agent of erosion
What is wind?
100
These glaciers flow in all directions as they move.
What are continental glaciers?
100
This term is defined as any one of several processes that move sediment downhill due to the force of gravity.
What is mass movement?
100
These are the two ways in which waves can erode.
What are impact and abrasion?
200
This is the name of rivers that contribute to the main river.
What are tributaries?
200
This is the term for loosely compacted yellowish-gray deposits of wind-blown sediment that is finer than sand.
What is loess?
200
This valley shape is carved out by glaciers, replacing this previous valley shape, carved out by rivers.
What are U and V?
200
This is the quick movement of rock and soil down a steep slope and the most destructive kind of mass movement.
What are landslides?
200
This is an area of wave-washed sediment along a coast and is composed mostly of this grain size.
What is a beach and what is sand?
300
This is the term for a meander that has been cut off from a river.
What is an oxbow lake?
300
This is the process by which wind removes surface material, picking up silt/clay and sand and is the main way wind causes erosion.
What is deflation?
300
These glacial deposits can tell you the direction of flow of a glacier.
What are drumlins?
300
These are rapid downhill movements of a mixture of water, rock and soil and often occur after rains in a normally dry area.
What are mudflows?
300
This is the term for the coastal feature below.
What is a spit?
400
This is the term for natural landscape that is largely the result of chemical weathering by water, resulting in caves, sinkholes, cliffs, and steep-sided hills called towers.
What is karst topography?
400
This is what remains after deflation has caused all other smaller sediment to be swept away.
What is desert pavement?
400
These are the two processes by which glaciers erode the Earth's surface?
What are abrasion and plucking?
400
These occur when a mass of rock and soil suddenly slips down a slope, and unlike landslides, material moves down in one large mass.
What are slumps.
400
This is the overarching term for a feature in a stream such as a water fall.
What is a nick point?
500
These are a result of sediment deposition by rivers that build up over time in an ocean or a lake and these are a result of sediment deposition by streams or rivers that flow out of a steep mountain valley.
What are deltas and alluvial fans?
500
These are the names of the sand dune shapes below.
What are star-shaped and crescent-shaped sand dunes?
500
These three features are carved by glaciers and found on mountains.
What are horns, cirques, and arêtes?
500
This is the term for a very slow downhill movement of rock and soil, evidence of which can be seen in the vegetation of hillsides.
What is creep?
500
The term for the "fossilized lightning."
What is a fulgurite?