This stream tray is a simple, strong, metallic, rust resistant pan for use in the classroom to study the effects of erosion on soil. Simulated hills and valleys are created in the tray by using certain sand and soils, then water is introduced to study the formation of rivers and to witness erosion etc.

The creation of rivers and cliffs can be seen and the action of sedimentation of river mouths and the creation of deltas can be studied.