PURPOSE: To illustrate refraction.

DESCRIPTION: The can rests halfway into a water bath. Viewed at an angle, the can appears discontinuous at the water surface. The wimps who can't explain the neat picture at the left can go with the more classic view at the right.

SUGGESTIONS:

REFERENCES: (PIRA 6A42.45)

EQUIPMENT: Weighted cola can floating in water bath in fish tank.

SETUP TIME: 5 min.