1. what can be created from frost heave?
- stone strips and polygons
- squares and triangles
- an irregular permafrost pattern
- an esker
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2. what is a kame?
- a layer of material
- stratified mounds of material
- a band
- recessional push
3. What is a drumlin
- an object by the side of the snout
- an oval shaped hill
- a series of stratified mounds of material alongside a glacier
- A musical instrument
4. How does ice formation start?
- the mass changes colour from white, indicating the presence of air, to a bluish colour, indicating that the air has been largely expelled.
- Te snow accumulates, compression by the upper layers gradually turns the lower snow into a more compact form known as firn or neve.
- Snow falls as flakes, which have an open, feathery structure that traps air.
- air is progressively squeezed out of the lower snow by the weight of the upper layers and after a period of some years a mass of solid ice develops – where there is no summer melting, this process takes longer.
- Meltwater seeps into the gaps and then freezes – further compacting the mass.
5. what will happen if two corries develop together?
- steep sided ridge between the two hollows called an arête
- the central mass will survive as a pyramidal peak
- you get a double episode