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Learners mix a solution of luminol with hydrogen peroxide to produce a reaction that gives off blue light.

This is an activity exploring color and color mixing.

In this activity (page 2 of PDF), learners play with a lens and a piece of paper to focus an image on the paper. Learners look at different things, and see how the lenses affect the image.

In this activity, learners explore color, light and shadow by creating their own puppets to hold in front of a light source.

This is written as a display, but can easily be adapted to a hands-on activity. Learners observe and shake containers of shiny liquids.

In this activity, learners explore light, color and rainbows by making their own rainbow glasses.