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In this optics activity, learners make a "light fountain" from a clear plastic bottle, flashlight, and other simple materials.

1 cent - $1 per student Ages 8 - 14 5 to 10 minutes
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In this activity, learners make optical fibers out of strips of gelatin.

$1 - $5 per group Ages 8 - 14 2 to 4 hours
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In this activity, learners use a laser pointer, empty soda bottle, rubber plug and water to demonstrate total internal reflection.

free Ages 14 - 18 5 to 10 minutes