This bundle includes two different files. One file covers soil (types of soil, horizons, etc.), and the other discusses the three types of rocks (metamorphic, sedimentary, and igneous). I use these documents with my second graders, so I tried not to go "too deep" with any of the information. I believe it provides enough information for your students to get a good understanding of basic concepts but doesn't go "over their heads." Quizzes are included for each subject. I hope you find this helpful!