The fact you say your Mom is 'forcing' you to eat something is more worrying than the actual thing she is trying to force you to eat. Whether the chicken is cooked or not is not the issue here and taking a potentially hazardous food substance to school will do no one any good. They are not going to store it and call public health, this is not their job. However, you do need to talk to someone about your relationship with your mom, as reading through some of your other posts there seems to be the potential here that you are being abused in some way, and this needs to be addressed.