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...
Free, interactive programs allow you and your students to learn more about our home planet and to journey into space using video-conferencing and Web casts. Students of all ages are able to speak directly with NASA...
Scientific and technological literacy is about understanding and applying concepts, process skills, attitudes, and values which enable a person to relate science and technology to the life and culture of his/her own...
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