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How Do We know About Layers Deep Within the Earth?

How Do We know About Layers Deep Within the Earth?

This site, part of Exploring Earth Investigation by McDougal Littell and TERC, examines what (and how) we know about the Earth's layers. The investigations "were designed to build students' knowledge of Earth Science concepts�and to raise student awareness of Earth as a system of interconnected components and processes." Here, visitors can find lessons on how scientists have learned about the inner layers of Earth. Topics such as seismology, modeling internal structure, seismic tomography, and space imaging are all covered here. Many sections have illustrative images and interactive features, which help students, understand the topics presented, and the final section ends with questions for students to further explore as well as links to further modeling and mapping exercises. This is an excellent site for any Earth Science classroom as an introductory lecture or as an out-of-class exploration for students.


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