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

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.