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This investigation is based on the GISP2 H-core data collected in 1992 adjacent to the GISP2 Greenland summit drill site. Students examine the seasonal/annual nitrate record and use information from known volcanic eruptions to date the unique... (View More)

Learners will construct two different types of trusses to develop an understanding of engineering design for truss structures and the role of shapes in the strength of structures. For optimum completion - this activity should span 3 class periods to... (View More)

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