The main types of scientific model are visual, mathematical, and computer models. Visual models are things like flowcharts, pictures, and diagrams that help us educate each other. Mathematical models involve scientific equations that approximate and explain how the world works, allowing us to make calculations and predictions. Computer models can do difficult calculations that would take a really long time for humans. We use computers to predict the way things might behave in the world and help us find answers to our scientific questions.