landforms


 * weathering - the process of breaking down rock. over time, weathering turns rock into soil.
 * water, ice, wind and gravity are all forces of weathering.
 * moving water is common cause of weathering
 * if water freezes, the water will expand and take up more space as it changes into ice. over time the, it will cause cracks. if this process coutinues over time it will cause more cracks, in times it brakes.
 * wind often carries small particles of sand and soil wich can scrape rocky surfaces.
 * (A-bra'-tion-) abarison - is the grinding away at rock by other rock or sand particles.
 * gravity is the force that PULLS thing towared eaths surface