Science

3. Last and innermost layer of Earth.
4. Elevated portions of lands that are formed by geologic activities.
5. Outer solid part of the planet include Earth's crust as well as the rigid upper part of the mantle.
7. Flat and broad land areas that have no great changes in elevation when measured with reference to the mean sea level.
9. A flat-topped hill and steep sides and are formed in and to semi-arid desert conditions.
11. A predominantly silt-sized sediment formed by the accumulation of windblown dust.
14. scientific study of landforms and the processes that shape them.
16. Low-lying triangular area located at the mouth of rivers.
18. Outermost layer of the Earth.
19. Largest layer of Earth.
20. Small hills made up of sand measuring between 1-10m high.

1. A deep ravine between cliffs that is often carved from the landscape by a river, wind, or glacier.
2. Piece of land that projects into a body of water and is connected to the mainland by an isthmus.
6. Study of the flow of matter primarily in the liquid state.
8. Natural physical features on the surface of Earth.
10. Bend in a sinuous watercourse of river.
12. Study of the current terrain features of a region.
13. Landforms that area controlled by geological processes that form them and continually act on them after their formation.
15. Low-lying area of land situated between hills or mountains.
17. Also known as table lands or flat-topped mountains.