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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.

"Exploring the Universe: Filtered Light" demonstrates how scientists can use telescopes and other tools to capture and filter different energies of light to study the universe.

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

This activity (on page 2 of the PDF under SciGirls Activity: Doghouse Design) is a full inquiry investigation into absorption and reflection of radiant energy.

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

This activity guide includes instructions for building a spectroscope using a standard classroom overhead projector.