Recognize that scientists use models to explain phenomena that cannot be easily seen or detected;

Why Are Scientific Models Necessary?
When you hear the word model, you probably think of a toy-like car or airplane that is a smaller version of the real thing. Scientific models are representations of objects, systems or events and are used as  tools for understanding the natural world. Models use familiar objects to represent unfamiliar things.
Models can help you visualize, or picture in your mind, something that is difficult to see or understand. Models can help scientists communicate their ideas, understand processes, and make predictions.


The use of model
   • Science 7 - The Use of Scientific Model  

The particle model of matter
   • Science 7 - The Particle Model of an ...