Rivers end at the top of a mountain.
Rivers end at the ocean.
Rivers do not flow.
Rivers start at the top of mountain and high places.
Rivers start at oceans.
mountains or high places
oceans
Puddles of water are in high places.
Puddles of water are in low places.
Flowing water does not change the shape of land.
Flowing water pushes along soil and breaks down pieces of rock.
