Ultraviolet Bead

lt;div class="long-description"><h2>Description</h2>School Specialty UV Beads change color when exposed to ultra violet radiation from the sun. Opaque and white pony beads measures 6 mm x 9 mm and sold as 150 per pack.</div><div class="feature-description"><h2>Features</h2></div><div class="in-box-description"></div>

Watch white beads change to red when taken outside the building! When returned they turn back to white. What causes the change? Humidity? Temperature?

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Learn about the presence of ultraviolet light with the amazing color-changing bead set from Steve Spangler Science. Just because we can’t see

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Learn about the presence of ultraviolet light with the amazing color-changing bead set from Steve Spangler Science. Just because we can’t see

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