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In this activity, learners investigate color vision as well as plan and conduct their own experiments.

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

In this optics activity, demonstrate diffraction using a candle or a small bright flashlight bulb and a slide made with two pencils.

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

In this optics activity, learners examine how polarized light can reveal stress patterns in clear plastic.

In this activity (posted on March 20, 2011), learners follow the steps to construct a stroboscope, a device that exploits the persistence of vision to make moving objects appear slow or stationary.

In this optics activity, learners discover that not all shadows are black. Learners explore human color perception by using colored lights to make additive color mixtures.