Final answer:
A model is a simplified representation of a real-world object or system that helps us understand complex systems by making them easier to study.
Step-by-step explanation:
A model is a simplified representation of a real-world object or system. In science, models are used to help us understand complex systems by making them easier to study. For example, when studying the solar system, scientists may use a model that represents the positions and movements of the planets, but on a much smaller scale and with simpler dynamics.
One example of a simpler model is the toy cars that we play with as children. They give us a good idea of what a real car looks like, but they are much smaller and simpler. These toy cars help us understand the basic features and functions of a real car without having to study the actual vehicle.
Using simpler models allows scientists to make predictions, test hypotheses, and gain insights into how the real system works. While the models may not be 100% accurate representations, they provide valuable information and help us build a better understanding of the world around us.