E n counter EarthÂ gives you a new, well-organized way to visualize key topics, helping you find Google Earthâ„¢ locations for assignments created. Here's how it works: Each of 20 Explorations consists of a worksheet and a .KMZ file. The worksheets, available in the workbook or as PDFs, guide you through activities and ask for feedback. The .KMZ files, designed to be read by the Google Earthâ„¢ application, contains placemarks, overlays, and annotations referred to in the worksheets. Worksheets are printed in a paperback supplement that also includes an access code to theÂ Encounter EarthÂ website.Â The supplement is perforated for homework assignments. It's the ideal companion to your introductory geoscience course.