These clever little boxes can be used to drive curiosity when the conversation is about the concept of volume. How is it possible that they each fit into the other?
Can also be a great conversation piece in the cave!
You open the black box and inside is a red box. The red box is smaller – it is removed, and you now close the black box. Put the black box into the red box. Now the black box is smaller than the red! Repeat as often as you like. Curiosity runs out of control! The boxes are completely solid and rigid. They are not flexible, or elastic, and there are no sliding or moving parts.
Called Gozinta Boxes because one box “gozinta” the other!
