Next we learned the difference between accuracy and precision. Then we learned the difference between quantitative and qualitative means such as label drawings, writing, and graphic organizers. We learned how scientists use models to represent aspects of the natural world such as a model of Earth’s layers. A model shows the structure of an object, system, or concept. A simulation uses models to imitate the function, behavior, or process of whatever the models represent. Then we learned how computer models contest designs, such as turbines before they are built. Mathematical models help make predictions such as with the weather. Next we looked at some physical models such as molecular models and life-size models of human organs. These models allow scientists to study objects or systems that are too small to see or too big to see completely. Then we learned that there are limitations to these models because they don’t always behave exactly like the object or system they represent. We learned that mathematical models are useful for showing patterns and making predictions. However some systems are too large or too complex for mathematical models even if you use computers. Next we learned about conceptual models which is a representation of how parts of a system are related or organized such as a model of the rock cycle. Conceptual models can be oversimplified and can lead to misconceptions which can produce incomplete predictions.
Assignment: Add new vocabulary, descriptions of international units used in scientific measurements, and models showing accuracy versus precision to science notebook.