Science

5. Natural physical features on the surface of Earth.
6. Outer solid part of the planet include Earth's crust as well as the rigid upper part of the mantle.
9. Low-lying triangular area located at the mouth of rivers.
11. Also known as table lands or flat-topped mountains.
12. Largest layer of Earth.
14. Study of the flow of matter primarily in the liquid state.
15. A deep ravine between cliffs that is often carved from the landscape by a river, wind, or glacier.
17. Small hills made up of sand measuring between 1-10m high.
18. Last and innermost layer of Earth.
19. Piece of land that projects into a body of water and is connected to the mainland by an isthmus.
20. A flat-topped hill and steep sides and are formed in and to semi-arid desert conditions.

1. scientific study of landforms and the processes that shape them.
2. Flat and broad land areas that have no great changes in elevation when measured with reference to the mean sea level.
3. Elevated portions of lands that are formed by geologic activities.
4. Bend in a sinuous watercourse of river.
7. Study of the current terrain features of a region.
8. Low-lying area of land situated between hills or mountains.
10. A predominantly silt-sized sediment formed by the accumulation of windblown dust.
13. Landforms that area controlled by geological processes that form them and continually act on them after their formation.
16. Outermost layer of the Earth.