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Exploring Materials - Nano Gold

Exploring Materials - Nano Gold

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. Use this activity to explain how stained glass gets its different colors. Note: the cost for the materials in this activity is quite high. However, this is a one-time cost, since the nano gold is kept in vials at all time and thus should not be used up. SAFETY: Do not...

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