As the heading says, knowledge is power! The knowledge you have been exposed to in the junior school gives you the power to understand aspects of the world around us. That knowledge is assumed in the Senior Science courses! It is assumed that you know and understand it!. The links below provide you with an opportunity to look over and revise summaries of the knowledge you have been exposed to and even opportunities to test your understanding of that knowledge. Also each contains a link to the HSC syllabus pages for that subject. Have a look at what you are going to learn in the science you are doing! Remember the 5 Ps! Prior Preparation Prevents Poor Performance!