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In this activity (pages 17-31), learners are introduced to techniques that are used to determine the structures of solid materials.

In this activity (posted on March 12, 2011), learners follow the steps to construct a spectroscope, a tool used to analyze light and color.

In this activity, learners construct their own spectroscope as they explore and observe spectra from familiar light sources.

In this activity on page 13 of the PDF, learners use a laser pointer (with known wavelength of light) to measure the thickness of a human hair.