Glaciers
Ice sheets smaller than continental glaciers
Ice caps
This type of weathering does not change the chemical composition of the minerals that compose a rock
Physical weathering
The source of a river
Headwaters
A spire-like mass of dripstone on the floor of a cave
Stalagmite
After a rock has been broken into fragments, processes like wind and running water carry away the fragments by this process
Erosion
Large, deep grooves and scratches in rock, produced by glaciers
striae
This type of weathering occurs when rainwater soaks into cracks in a rock and freezes, splitting the rock
Ice wedging
One of the numerous streams that feed into a river at various points
Tributary
Large, funnel-shaped depression caused by cavern collapse
Sinkhole
The stripping away of a thin area of topsoil from the surface of the land
Sheet erosion
The piles of debris left behind when a glacier melts
moraines
This type of weathering involves the breaking or peeling away of rock into layers
Exfoliation
A large stream that carries water from the mountains to the sea
River
What type of narrow, curved rock formation forms when a sea cave is continually eroded
Sea arch
Particles too heavy to be lifted by the wind are rolled in short bursts through this process
Creep
A low hill formed when a glacier overruns a moraine
drumlin
The natural processes that break down rocks are collectively called this
Weathering
Feature formed when a sharp curve in a river is cut off from the rest of the river
Oxbow lake
What are limestone formations that have become filled with various passageways and large caves
Caverns
After physical forces carry away rock fragments, the fragments are laid down in a new location through this process
Deposition
The time when 1/3 of the of the earth's land area was covered in glaciers
Ice Age
This type of weathering occurs when a plant's roots slowly thicken in a rock, causing the rock to crack
Physical weathering
Region of land drained by a stream or drainage system
Drainage basin
Large, icicle-like masses of calcium carbonate found in caves
Dripstone
Suspension, saltation, and creep, in which wind transports sediments are what processes
Eolian