Science crossword puzzle

4. - flat and broad land areas.
5. - outermost layer of the earth.
7. - Latin word which means "almost island"
8. - they are smaller mountains
10. - flat-topped mountains.
13. - study of the current terrain features of a region.
14. - deep ravine between cliffs
16. - small hills made up of sand.
17. - scientific study of landforms and the process that shapes them.
19. - is a bend in a sinouos watercourse of river.
20. - landforms that underwent sedimentation, erosion or deposition on the river bed.

1. - slit-sized sediment formed by the accumulation of windblown dust
2. - high rocky coasts that plunge down the edge of the sea
3. - is almost similar to mesa
6. - low-lying area of land situated between hills or mountains.
9. - outer solid part of the planet.
11. - landforms that are controlled by geological process that form them and continually act on them after their formation.
12. - last and innermost layer of the earth.
15. - the largest layer of the earth.
18. - is the study of the flow of matter primarily in the liquid state.