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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.

Learners use two mirrors to explore how images of images of images can repeat forever.

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

In this activity about light and reflection, learners discover that what you see is often affected by what you expect to see.