Simplify the following text for a Grade 5 native English-speaking person.
Original: SchrÃ dinger 's Cat This thought experiment highlights the implications that accepting uncertainty at the microscopic level has on macroscopic objects . A cat is put in a sealed box , with its life or death made dependent on the state of a subatomic particle .
Simplified: In SchrÃ dinger 's experiment , the cat was sealed in the box .