I would say to be safe age 11.
The corpus callosum does allow the hemispheres of the brain to have an access to the information in both sides therefore the information need to cross the corpus callosum yet if it would not cross into the corpus callosum the person would respond the opposite way as then.
The heat inside the Tupperware causes an increase in pressure and when enough pressure builds, the atoms need somewhere to go and the seal at the top is easiest to break, so the top blows off.<span />
A. Decreasing amount of energy needed to start a reaction.
