Geography is the study of the earth in all of its variety. When you study geography, you learn about the earth's land, water, and plant and animal life. You analyze where people are, how they live, and what they do and believe. You especially look at places people have created and try to understand how and why they are different. Geographers study the earth as the home of people. Five geographic themes -- location, place, human/environment interaction, movement, and region -- are used here to help you think like a geographer. - p. 21.