Science is the application of knowledge and understanding of the natural and social world following a systematic methodology based on evidence. The scientific methodology includes the following: ... Evidence, Experiment, and/or observation as benchmarks for testing hypotheses. As a learner, one needs to think critically about the possibilities, advancement that can be achieved by the subject. Learning the subject passionately can help you discover many things. You will learn in detail about the biological world, their relationship with one another, the hazards of not using the resources wisely, and so on.