In this student self-guided Earth Science activity, students will read about and work their way through the different techniques used in Relative Dating.Students will first gain an understanding of what relative dating is by solving a puzzle of "which came first?". Students will define and use the word strata often. Students will learn the following types of Relative Dating techniques: Law of Superposition, Index Fossils, Cross-Cutting, unconformities, disconformities, angular unconformities,