Code: EDUCPY1038
The beads contain pigments which react with ultraviolet light from the sun, even on a cloudy day. They also change with most classroom UV light sources.
Loading...
Loading...
White beads, that when exposed to UV radiation, change into a range of different colours. They can be used for scientific investigations into solar radiation and suncreams. They are drilled so can be mounted on string to make simple UV detectors.