Superintendent Anthony Cacciola said in a updated statement on the district's website Thursday that "a junior high school student had apparently taken the bullet from a relative's house, found it of interest and decided to show some friends at school and further indicated that he was unaware that he accidentally dropped it.
"This was an extremely poor decision on the student's behalf, but please be assured that there was never any intent for malice or harm," Cacciola said.
The student has been suspended pending the outcome of a superintendent's hearing.
"As a reminder to families with firearms and ammunition in the home, please take this opportunity to make sure that these items are kept secured and are continually checked and inventoried to help ensure that children cannot have access to them," Cacciola said.
Police were notified immediately after the bullet was found during the school day on Tuesday.