weathering

the process of rock breaking apart

erosion

the process of moving weathered rock from one place to another

deposition

the dropping of weathered rock by wind or moving water

sediment

small pieces of rock, such as sand and silt

landform

a natural land shape or feature shaped by natural causes

volcano

a place where hot gases, ash and melted rock come out of the ground onto Earth's surface

runoff

water that does not soak into the ground and instead flows across Earth's surface

flood plain

the wide, flat area alongside a river

precipitation

water that falls from clouds to Earth's surface

water cycle

the process in which water moves from the Earth's surface into the atmosphere and back again