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Geologists exploring the land may use colors to indicate the age or structure of rocks, while oceanographers exploring the sea may use contour lines to show the depth of features below the water. Scientists in numerous fields – from geography to geology to oceanography – all use maps in different ways, choosing to represent the information most relevant to their field of study. For example, a map of California, whether zoomed in on a computer or on a paper map, may have more information about roads, cities, and structures that are not shown in a map of the entire Earth.ĭepending on where you saw this map, you very likely saw different types of features identified – such as land, water, snow, and forests. You may have also noticed that the level of detail changes with scale. You have undoubtedly seen maps online or in classrooms, sometimes in the form of a globe or paper atlas. While students can work in small groups, consider providing a data sheet to each student to encourage discussion and comparison of their maps. Teacher answer key – Download | View on Google Docs Management Student data sheet – Download | View on Google Docs
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Through understanding geographic structures, students will also be able to identify the best technology used to map these structures. Students analyze and interpret topographic contour maps to describe their three-dimensional structure while learning about technology used to map the seafloor, Earth's surface, and other worlds.