Question

Sediment rocks: made from small sedimeants like clay and silt?

Answer 1

They are made from the materials on the earths surface and in bodies of water from erosion and weathering. In the simplest way possible to explain, these materials get compacted into a rock by water, wind, ice, or glaciers. I used to think of it as the materials are "settling" in, because it sounds kinda like sediment.