I just want to know how something can exist without being created. So if the Big Bang created the Earth, then what created the Big Bang? That is all I want to know, and then I´ll be ok with it being taught as science.

Something can not be made of nothing according to science. Energy can not be destroyed or created; it can only be transferred. So where did the energy come from? Exploring the Big Bang and similar theories is science, but it's not proven fact, and teaching as such only comes off as brainwashing, telling children that what their mommy & daddy taught them isn´t true.

The government shouldn´t trump a parent´s authority. I´m not saying children should be indoctrinated with creationism in public school, but they also shouldn´t be indoctrinated with something that goes against their family´s core beliefs.