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In this activity, learners use tonic water to detect ultraviolet (UV) light from the Sun and explore the concept of fluorescence.

$1 - $5 per group Ages 6 - adult 5 to 10 minutes
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This activity generates learner excitement about light through the creation of a room-sized rainbow.

1 cent - $1 per group Ages 8 - 14 10 to 30 minutes