Vocabulary
What are mountains?
a volcano where lava flows and dries like a sheet over the existing dry lava, Kilauea and Mauna Loa
What is a shield volcano?
the line where melting and freezing are equal
What is the equilibrium line?
deep ridges in the land caused by rain
What are gullies?
reason the Grand Canyon will get deeper
masses of lava too thick to flow and piles around the vent of a volcano
What is a lava dome?
What is a composite volcano?
snow that does not melt and stays all year
What is perennial snow?
triangle shaped area where the river slows and deposits sediment into the water
What is a delta?
What is sand?
What is relief?
a hill of sand that is shaped by the wind, shouldn't cross because of turtles
What are sand dunes?
a crack in the ice where the glacier is pulling away from the land
What is a bergschrund?
groundwater erodes the bedrock, leaving a hole, gravity pulls the top into the hole
What are sinkholes?
tall flat-topped rock features, can have multiple layers of sediment
areas with little relief
What are plains?
a long skinny island that runs parallel to the main land
What is a barrier island?
the area where snow is added faster than it melts
What is the accumulation zone?
rocks and sediment fall out of the wind or water
What is deposition?
large cracks on the top of a glacier
What is a crevasse?
large, thick sheets of moving ice
What are glaciers?
areas in a river where sand is higher than the land around it
What is a sand bar?
area where snow melts faster than it can be added
What is the ablation zone?
wearing away rock and sediment by water and wind
What is erosion?
areas where the river overflows and floods
What are floodplains?