gold
![Small science big deal table sign](https://nisenet.org/sites/default/files/styles/curated_list_large_cropped/public/images/catalog/8893/nanotechnology_sign.jpg?h=cd9660ee&itok=p9aX_LaJ)
Nanotechnology: Small Science, Big Deal!
This longer activity combines multiple NanoDays activities with a companion side presentation about nanotechnology.
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![Child holding squares of red stained glass colored by nano gold](https://nisenet.org/sites/default/files/styles/curated_list_large_cropped/public/images/catalog/8880/nanogold.jpg?h=8acc67b8&itok=vIyX3VeM)
Exploring Materials - Nano Gold
In this activity, learners discover that nanoparticles of gold can appear red, orange or even blue.
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![blue and orange nanotechnology "whats the big deal" exhibition logo](https://nisenet.org/sites/default/files/styles/curated_list_large/public/catalog/uploads/nanotechnology_whats_the_big_deal_exhibition_logo.png?itok=wj6fbNwM)
Nanotechnology: What's the Big Deal? exhibition
The Nanotechnology: What's the Big Deal? exhibition is a large, traveling exhibition that engages visitors about nanotechnology, the science behind it, potential societal impacts, and the many ways it will improve sciences like biology, medicine, and material science.
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![Formative Evaluation icon with blue background and image of a buckyball structure](https://nisenet.org/sites/default/files/styles/curated_list_large/public/images/catalog/eval_icon_formative_55.png?itok=mCj1Q9qA)
Treating Tumors with Gold 2009 Formative Evaluation
Formative evaluation for the Nanoscale Informal Science Education Network that gathered visitors’ feedback to a stage presentation on research using nanoshells and infrared light in cancer therapy.
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