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In this activity, learners discuss and investigate how cameras, telescopes, and their own eyes use light in similar ways.

In this activity, learners conduct a simple test to find their blind spot.

This is a quick activity/demonstration that introduces learners to the concept of index of refraction. Learners place stirring rods in a jar of water and notice they can see them clearly.

In this activity, learners investigate visual perception as well as plan and conduct their own experiments.

In this optics activity, learners make a lens and explore how the eye manipulates the light that enters it.

In this activity related to light and perception, learners use a pinhole in an index card as a magnifying glass to help their eye focus on a nearby object.