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In this activity, learners explore how nanosized structures can create brilliant color.

In this optics activity, learners work in pairs to explore how mirrors work. Learners use tape to mark the angles needed to see each other's reflection in a wall mirror.

In this optics/mathematics activity, learners use two hinged mirrors to create a kaleidoscope that shows multiple images of an object.

In this activity, learners use mirrors to write secret messages to a friend. Use this activity to explore letters, optics, and/or symmetry.

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

In this activity, learners explore how light and dark colored objects absorb the Sun's radiations at different rates.

In this activity, learners repeat patterns in two and three dimensions to create tessellations. This activity combines the creativity of an art project with the challenge of solving a puzzle.

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