| Natural science is knowledge we gain from the physical world. It is also known as empirical science, because we gain it through our sense experiences. With the scientific method we test our thoughts against an objective reality, imposing a healthy habit of trying to disprove our assumptions.
Some people say that if we have science, we no longer need religion. Those who want to scrap “religion” and trust in “science” do a disservice to both by redefining them as opposing worldviews. Science and religion constitute two kinds of knowledge, not two worldviews.
Some people believe in naturalism: the notion that all events are explained by natural causes, but such a view should not be confused with natural science. Everyone studies the physical world, so everyone has science, but not everyone believes in naturalism.
Religion, philosophy, and science are distinct but not separate. They reflect three aspects of one reality, and they work together as one. What we look to as our final authority determines our worldview by which we interpret everything around us.