Light
![Hands holding glass objects on a string in a beaker of liquid](https://nisenet.org/sites/default/files/styles/curated_list_large_cropped/public/images/catalog/10907/invisibility.jpg?h=9e2aa9b8&itok=sR3DScO6)
Exploring Nano & Society - Invisibility Cloak
In this activity, learners explore how refraction can be used to make a glass stir rod "disappear" in a cup of baby oil, while having conversations about new technologies.
Product
![Closeup photo of Blue Morpho Butterfly](https://nisenet.org/sites/default/files/styles/curated_list_large_cropped/public/images/catalog/10473/screen_shot_2012-06-06_at_4.21.34_pm.png?h=9e7b4264&itok=Pu_kczbB)
Butterfly Blues video
In this O Wow Moments video, Mr. O talks about iridescence and Blue Morpho butterflies.
Product
![two children looking at Blue Morpho butterfly](https://nisenet.org/sites/default/files/styles/curated_list_large_cropped/public/images/catalog/8886/butterfly.jpg?h=aabaf923&itok=-SMZfUJN)
Exploring Structures - Butterfly
In this activity, learners investigate how butterfly wings get their color and that some wings get their color from the nanoscale structures on the wings instead of pigments.
Product
![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.
Product
![Exploring Products - Sunblock activity components like the construction paper, swabs, and sunblock.](https://nisenet.org/sites/default/files/styles/curated_list_large_cropped/public/images/catalog/5403/img_2785.jpg?h=273ad304&itok=1_6xgbw7)
Exploring Products - Sunblock
In this activity, learners compare sunblock containing nanoparticles to ointment.
Product