Color Mixing (extended) for Girls Inc.

The PhoSoc's "Color Mixing" activity was extended to an hour-long activity for the Teen Center at the local Girls Inc.
We borrowed the red-blocking laser safety glasses from the Light-Pipes activity, and used it to simulate "color blindness" - ie. what happens when you are missing a red cone?
(Answer - no red objects don't become invisible, but colors that were previously obviously different become nearly indistinguishable!)