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In this activity, learners use simple materials to create giant bubbles.

In this activity, learners explore why they can see colors in bubbles and why they change.

In this activity, learners construct a device that allows them to look over ledges or around corners.

In this activity, learners investigate the reflective properties of light and mirrors as they make a kaleidoscope.

In this activity, learners observe as soap bubbles float on a cushion of carbon dioxide gas. Learners blow bubbles into an aquarium filled with a slab of dry ice.

In this optics activity, learners build a spy tool to secretly view things over walls or around corners.