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In this activity, learners discover that nanoparticles of gold can appear red, orange or even blue. They learn that a material can act differently when it’s nanometer-sized.

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

In this activity about light and reflection, learners use a special device called a Mirage Maker™ to create an illusion.

This activity guide includes instructions for building a spectroscope using a standard classroom overhead projector.

In this activity, learners explore the relative efficiency of different bulbs, specifically incandescent vs. fluorescent.