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Morphing Butterfly
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In this activity, learners explore how nanosized structures can create brilliant color.
Dark Adaptation
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In this activity (6th on the page), learners investigate how photoreceptors in the eye (rods and cones) "adapt" to low light conditions.
Exploring Structures: Butterfly
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In this activity, learners investigate how some butterfly wings get their color.
The Senses of "Unknown Creatures"
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In this activity, learners use earthworms as "unknown creatures" from the South American jungle to find out how animals use senses.
Can You "See" Thermal Radiation?
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Use this hands-on activity to demonstrate infrared and thermal radiation.