Creek Erosion Study Description

Purpose:
The purpose of this study is for students to observe first hand how the earth’s surface is changing, specifically by observing the processes of weathering, erosion, and deposition.

In-Class Preparation:
In preparation for the creek study, students learn about constructive and deconstructive processes that shape the Earth’s surface. Concepts covered included weathering, erosion and deposition. Students use critical thinking skills to come up with ideas about how they might identify erosion and deposition in a given area in the Hogtown Creek.

At the Creek:

Prior to going down to the creek, the instructor identifies and marks several places along the creek where either erosion or deposition is occurring. At the creek, students identify whether erosion or deposition is occurring at each observational site and note this on their data sheet. Students also cite evidence as to which processes occurred at each observational site and identify the agent/cause of the process.

In addition, students also measure creek velocity at two areas along the creek. Just beyond a marked starting point, one student releases a rubber duck. After the duck passes the starting point, another student calls out “start” and the student timer starts the stopwatch. The same student then stops the stopwatch after the duck passes the marked end point and another student records the time.

Benefits:
Students gain direct exposure to processes that produce landforms on Earth that they learn about in class, noting areas along the creek where previous erosion or deposition has occurred. This kind of outdoor learning can help students better grasp abstract concepts and gives them a greater connection to the natural world. Best of all, this study is a truly enjoyable experience outdoors for all of the students. They always ask their teachers when they are going back to the creek!

Partners:
The creek erosion study is led by USDA Forest Service scientists with assistance from staff and volunteers from the University of Florida, the Alachua County Environmental Protection Department, and Westwood parents. City of Gainesville Parks, Recreation, and Cultural Affairs staff helped pick the site locations and granted access to Hogtown Creek for the duration of the study.