Afterimage Snack

This activity (aka "snack") provides instructions for studying the lingering afterimage that often remains after viewing a bright light source. 

Balancing Stick Snack

This activity (aka "snack") provides instructions for building a balancing stick (a wooden dowel with lump of clay on one end) to explore center of gravity and angular momentum.

Falling Feather Snack

This activity (aka "snack") provides instructions for repeating Galileo's famous experiment showing that objects of different mass fall at the same rate. Galileo predicted that heavy objects and light ones would fall at the same rate because the resistance of

Cold Snack

Explore why metal or other good conductors of heat may feel colder to the touch than wood, a poor conductor, even though both materials are at the same temperature.

Blind Spot Snack

Learn how to locate and observe the blind spots in your eyes. The eye's retina receives and reacts to incoming light and sends signals to the brain, allowing you to see. There is, however, a part of the retina that

Wiggle Where You're At: Proprioception

 This activity (aka "snack") provides instructions for observing your sense of body position where your legs and arms are, for example even with your eyes closed.Since most of us are highly dependent on visual cues for judging distance, position, etc.


This is a resource from the Digital Library at San Francisco's Exploratorium. Kid friendly experiments and explorations for curious minds. October 2008 10 02 Diamagnetism Activity This activity provides instructions for demonstrating diamagnetism using a grape and a strong rare