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In this data collection and analysis activity, learners evaluate fish physiology and ecology using vision research data from Dr.

free Ages 14 - 18 1 to 2 hours
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In this demonstration (18th on the page), learners conduct a simple test to explore how the cornea refracts light, which is further bent by the eye lens through a process known as accommodation.

free Ages 8 - 18 Under 5 minutes