Chapter 
Organize
Learn
Connect
Instructors now have an easy way to collect students’ online quizzes with the Norton Gradebook without flooding their inboxes with e-mails.
Students can track their online quiz scores by setting up their own Student Gradebook.
Chapter 19: A Hidden Reserve: Groundwater
Animations
Click on the links below to view animations created specifically for Earth: Portrait of a Planet. Animations require Macromedia's Flash Plug-in.
Zoomable Art: Caves and Karst Landscapes
Underground openings that develop by dissolution are called caves or caverns. For more information, see the Featured Painting on pp. 682-683 in your textbook.