Over millions of years, layers of sediment may build up and harden into sedimentary rock like this sandstone at Kaleidoscope Ridge, Arizona. Sandstone forms as tiny grains of sand harden into a single mass.

Photograph by James P. Blair

Download this file

Our media can be used in a variety of contexts—from media spotlights to encyclopedic entries to lessons. From this page, check out the different ways you can use this .

Other Pages That Use This Item

sediment
sediment Encyclopedic Entry

Best For
5-12+

Subjects
Geography, Science

Appropriate For

  • Educators
  • Families
  • Students

Encyclopedic entry. Sediment is solid material that is moved and deposited in a new location. Sediment can consist of rocks and minerals, as well as the remains of plants and animals.