This is a timed quiz. You will be given 15 seconds per question. Are you ready?
15
Are glow-in-the-dark crystals safe to touch?
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Which mineral is commonly used in creating glow-in-the-dark materials?
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What is the most common color for glow-in-the-dark crystals?
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What causes glow-in-the-dark crystals to emit light?
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What is a common example of a glow-in-the-dark crystal?
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What is the main difference between fluorescent and phosphorescent glow-in-the-dark materials?
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What type of light is typically required to charge glow-in-the-dark crystals?
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How long do glow-in-the-dark crystals typically glow after being charged?
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Wrong!
quiz on glow in dark crystal
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