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In this three-part activity, learners conduct simple experiments to see how light refracts and reflects, and how colors of light affect what we see.

In this four-part activity, learners explore light and sound through a variety of hands-on investigations.

In this activity (posted on March 14, 2011), learners follow the steps to construct a camera projector to explore lenses and refraction.

In this activity about light and refraction, learners discover how a lens creates an image that hangs in midair.

In this activity, learners use pop-beads to understand the characteristics and properties of polymer chains.