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Learners are challenged to discover the relative densities of colored liquids to create a rainbow pattern in a test tube.

In this outdoor activity and observation game, learners hunt for a variety of textures, colors, odors and evidence of organisms in the activity site.

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

In this STEAM activity, learners create a "pixel tube" to explore reflections of light and color mixing.

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.