As an online science tutor, you help students with their science studies via the internet. Your duties and responsibilities depend on your specific employer and the types of services they provide. In some cases, you may work with one student, or you may lead group sessions where you teach skills or fundamentals related to a specific subject, such as biology, chemistry, geology, or earth sciences. Some online tutors work specifically with middle school or high school students, while others assist college-age students. Regardless of age, you discuss the curriculum with your students and determine their specific goals and needs before starting.