Protocol

Students will construct a Frost Tube that is inserted into a hole in undisturbed and uncompacted soil. During the cold months, students measure the depth at which water in the Frost Tube has frozen, indicating that the surrounding soil has also frozen. Watch the Frost Tube Training Video.

Field Guides

Step-by-step instructions for collection data according to the protocols.

Data Sheets

Sheets to be filled out during data collection