This free, standards-based, online publication, developed for middle school science teachers, explores the four earth system components. The National Science Education Standards for grades 5-8...

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This free, standards-based, online publication, developed for middle school science teachers, explores "Methods of science" which underscores the variety of process skills available to scientists,...

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This free, standards-based, online publication, developed for middle school science teachers, explores energy transfers and transformations by linking to and describing inquiry-based lessons and...

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Instructional guides, lesson, and activities for such topics as: science methods, mineralogy, organic systems, polar regions, atomic theory, physics, germ theory, geology, astronomy, the water and...

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Basic explanation of soil quality and restoration management practices.

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