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In this demonstration, learners discover that nanoparticles behave differently, in part because they have a high surface area to volume ratio.

In this optics activity, learners create a ripple tank from household materials to study waves. Learners build the tank and then explore by making various types of waves.

In this optics activity, learners explore color by examining color dots through colored water and the light of a flashlight.

In this demonstration/experiment, learners discover that different colors and materials (metals, fabrics, paints) radiate different amounts of energy and therefore, cool at different rates.

This activity generates learner excitement about light through the creation of a room-sized rainbow.

In this activity, learners explore liquid crystals, light and temperature. Using a postcard made of temperature-sensitive liquid crystal material, learners monitor temperature changes.