Use separate concept sketches to list, illustrate and explain four $(4)$ of the five main principles of relative dating that were covered in class. These principles are described in chapter $2$ and chapter $9$ of the required textbook. It is also easy to find video tutorials on YouTube that cover these principles. Remember: a concept sketch must be labeled and full sentences must be used in the explanation. Use your own words in explanations. Copying from the text or another student is an act of plagiarism that will result in automatic failure of the assignment.