Deserts
A hill or ridge of wind deposited sand.
What is a dune?
A large moving mass of ice on land.
What is a glacier?
A bowl shaped depression that forms at the head of an alpine glacier.
What is a cirque?
The sediment that dunes are made of.
What is sand?
The period of time in Earth history in which there was a significant amount of glaciation on Earth's surface.
What is the ice age?
The steeper, downwind slope of a dune.
What is the slipface?
A glacier that forms in mountainous areas where ice that accumulates at higher elevations flows down through long, narrow valleys.
What is an alpine glacier?
A cirque that has filled with water to create a lake.
What is a tarn?
What is till?
The shape of a valley that has been formed by a glacier.
What is a U-shaped valley?
A stream that only flows for part of the year.
What is an ephemeral stream?
A very large, thick mass of glacial ice that spreads out in all directions.
What is an ice sheet?
A sharp ridge that separates glacial valleys
What is an arete?
A pile or sheet of sediments formed directly by the melting of glacial ice.
What is moraine?
A boulder that was transported and deposited on Earth's surface by a glacier and has a different composition that local rocks.
What is an erratic?
The movement of sand grains along Earth's surface by bounces and jumps.
What is saltation?
A deep fracture in the surface of a glacier.
What is a crevasse?
A pyramid-like mountain formed when glaciers erode the peak from multiple directions.
What is a horn?
Glacial till that covers the ground surface like a blanket.
What is ground moraine?
The cause of melted ice at the bottom of a glacier.
What is pressure?
Barchan, transverse, longitudinal, and parabolic.
What are different types of sand dunes?
The process by which rocks are lifted out of place at the bottom of a glacier and pulled up into the moving ice.
What is plucking?
A smaller glacial U-shaped valley that enters a larger U-shaped valley at a height above the floor of the larger valley.
What is a hanging valley?
Thick layers of wind deposited silt as a result of thousands of years of dust storms - usually yellow or buff in color.
What is loess?
A depression formed on Earth's surface when large blocks of ice from a melting glacier are buried or surrounded by sediments.
What is a kettle?