UV Detecting Colour Changing Beads
Details
https://www.tts-international.com/uv-detecting-colour-changing-beads/1008564.htmlProduct Code: 708-SC00853
Ultra violet reacting beads which turn from white to varying bright colours when exposed to sunlight or other UV light sources.
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Why you'll love this product
The beads change colour when UV light is detected
Use to experiment with the power of the sun at different times of the day
Investigate the effectiveness of different SPF products
Beads are drilled so can be easily threaded
Create colour changing bracelets
Prompt discussions on sun safety