Are the Earth Science 2nd Edition activity videos compatible with the previous edition? Are there hands-on projects with this course? Can I use a 1st Edition lab kit with Earth Science, 2nd Edition? Can I use the Earth Science 1st Edition textbook with the 2nd Edition notebooking journal? What are the grade levels for Earth Science? What materials are needed to teach Earth Science, 2nd Edition? What updates have been made to Exploring Creation with Earth Science, 2nd Edition? When should students take Earth Science in relation to other books in the Young Explorer Series? Who are the authors of Earth Science and what are their qualifications?