A Bartow High School student was charged Monday after police said she set off an explosive device on school grounds.
Police said the 16-year-old came on campus about 7 a.m. with a plastic bottle and ingredients to cause an explosion. Police said she put the ingredients - all household materials - in the bottle and placed a lid on it, which caused a small explosion.
According to the Ledger newspaper, the student told authorities she was conducting a science experiment, but police said teachers were unaware of any experiment.
Principal Ron Pritchard said the student was nearby when the bottle exploded.
The girl was taken to the school office, where police took her into custody.
She was transported to the Polk County juvenile assessment center and charged with possession and discharge of a weapon on school grounds, and making and discharging a destructive device.
No injuries or damage to the school were reported, police said.