Notice: the ICE Online Store and Office is closed through June 2022  


Due to building construction and limited staff the ICE Office and Online Store will close for the Spring 2022 semester; please look for updates on our website for future plans. We apologize for any inconvenience and thank you for your patience and understanding as we corrdinate reopening.

Photochromic ICE T-shirt, Adult

Photochromic ICE T-shirt, Adult

Type: D    |    Level: Al Levels

Watch its colors change in sunlight! This snazzy white T-shirt has a black outline of the ICE structure on the front and a smiling sun on the back. Step into sunlight, and the designs become bright shades of blue, purple, yellow and orange! UV active dyes in the shirt are colorless in room light, but become brightly colored in sunlight.

What happens and why? Use this T-shirt to teach students how conjugated double bonds absorb light. The dyes in the ink become more conjugated when exposed to sunlight resulting in a colorful, light absorbing form; they relax to a less conjugated, colorless form when removed from light.

The shirts, made from 100% heavyweight cotton, are washable and come in both child and adult sizes.