Behaviour in science is generally worse than in other subjects because science lessons are less likely to have carpet in the room, and behavour has been shown to be significantly improved by carpet...students in a science lesson are more likely to be sitting on stools, and again, behaviour has shown to be better on chairs. Science lessons are more likely to involve moving around the room, again, this impacts on behaviour, and science lessons are more likely to have dangers in the room, meaning the teacher has to prioritise safety in one aspect of the lesson over discipline over the whole lesson. The reasons for comparatively poor behaviour in science are well known and understood, as are the additional challenges faced by science teachers. You will find, once you have had more experience, that when science is taught in a classroom with chairs and carpet, and students remaining in their seats, the behaviour is no worse than in any other lesson in the school. You will also find, that if a history lesson is moved into a science lab, with stools, and hard floor, and tables arranged for practical work, their behaviour will deteriorate. You may well find science too complicated or boring, that doesn't mean students do. Why would anyone ask the temperature of the sun? And what would happen if the Earth lost gravity is a bog standard year 7 question that I'm sure most students in the country have answered at some point or other I think you will find "the basics" take 11 years or so to learn.