Landform Review

4. slow moving masses of ice formed by the accumulation and compaction of snow
8. low areas of land between hills or mountains, typically with a river or stream flowing through it
9. deep narrow valleys with steep cliff walls, cut into the earth by running water
10. natural depressions or holes in the ground caused by the collapsing of the surface layer
13. large, flat areas of land that are raised SHARPLY above the surrounding land
14. small, natural waterways with a current
15. landforms that are raised steeply, forming peaks above the surrounding land (much higher and steeper than hills)
16. mounds of sand or loose sediment on the sea coast or in a desert

1. mountains that open downward to a pool of molten rock below the surface of the earth
2. landforms that are raised naturally (not as high or steep as mountains)
3. flat or neatly flat sections of land with fertile soils and abundant grassy meadows
5. pieces of land completely surronded by water on all sides
6. sources of water rising from the ground (groundwater)
7. areas of low-lying ground along streams and rivers
11. a natural underground space large enough for a human to enter
12. the flat areas of land at the mouth of rivers, formed from deposition