Erosion: the moving of weathered rocks and soil by wind, water, and ice.

Absorbs: to take in; to soak up; "The sponge absorbs water ".

Landform: a shape of the land, such as a mountain, plain, or plateau.

Observation: something you have noticed by watching carefully.

Water cycle: the constant movement of the earths water. Plants give off moisture, and water from rivers and oceans evaporates, making water vapor. This vapor rises, forms clouds, then falls as rain, hail, or snow.