Other children look on as a boy in a yellow coat holds a red pot by the handle , tilting it towards a light orange tube .
It is certain that the boy in a yellow coat pretends to be conducting a science experiment while other children watch .
Chances are about even that the boy in a yellow coat pretends to be conducting a science experiment while other children watch .
It is certain that the boy in a yellow coat pretends to be conducting a science experiment while other children watch .
The boy in a yellow coat pretends to be conducting a science experiment while other children watch .