Snacks about Light

Snack name


Glue Stick Sunset

The scattering of light by the atmosphere, which creates the blue sky and red sunsets, can be modeled when light from a flashlight shines through clear glue sticks.

Laser Jello

Use gelatin as a smoked lens, to view total internal reflection, and as a color filter.

Real Image

Create the image of an object in space using a $2 ornament.

Solar Brightness

A photometer made by making a grease spot on white paper can be used to compare the brightness of the sun to the brightness of a lamp. By finding a position at which the sun is as bright as the lamp the power output of the sun can be estimated.



The Exploratorium 3601 Lyon Street San Francisco, CA 94123