Exploratorium: Science Snacks: Persistence of Vision

Try one of these 33 perception activities in your classroom.

Make a stroboscope and investigate how to make it seem like the image you look at appears to move.

The human body has proprioceptors that send signals to the brain so that we are aware of our body's position and movements. Try these simple experiments to learn about proprioception and about other visual and tactile clues that assist...

Create this optical illusion that incorporates what is known as the waterfall effect.

Learn about depth perception in this needle-threading activity.

An experiment in depth perception where you investigate how you perceive the size and distance of objects with one eye closed.

Exploratorium's snacks aren't edible, but they are good! Use your science skills to discover gravity, learn about biology, do fun experiments.

High schoolers identify perspectives on land management issues. They research and debate Yosemite's General Management Plan and develop personal responsibility on a local issue through citizen action.