The Sciences present a double challenge sometimes because of the mixture of concepts and math. Or other times the concepts alone are difficult to grasp. Your tutor's job is to show you the connection between things that you already know, and what you are meant to learn. This way, the leap won't be as large as it appears at first. Remember to talk to your tutor to explain exactly what you would like to accomplish, and which types of concepts are giving you the most difficult time.