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In this activity, learners use an old CD to construct a spectroscope, a device that separates light into its component colors.

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 (page 1 of the PDF under SciGirls Activity: Forensics), learners will use a home video camera with a “night vision” mode to test how various inks appear outside the spectrum of visibl

In this activity, learners explore how infrared technology is used by engineers to create equipment and systems for a variety of industries.