Curated OER
THE TRICKLE DOWN EFFECT
Learners participate in an exercise which demonstrates how sediments are deposited.
Indiana University
Indiana University Bloomington: Sedimentary Structures
This resource explains the depositional processes that occur in sedimentary rock formation to produce stratification, cross-bedding, graded bedding, rippled effects, and solidified mud cracks. Includes photographs of each type.
![U.s. Geological Survey: Graded Bedding [Pdf] Lesson Plan](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "U.s. Geological Survey: Graded Bedding [Pdf] Lesson Plan")
US Geological Survey
U.s. Geological Survey: Graded Bedding [Pdf]
This activity introduces students to the concept of sorting materials in different mediums and the sedimentary feature called graded bedding. Students will discover that water is a good medium to separate and sort particles and that...