Three benefits of models are ~they are just the right size for scientists to examine properly. ~Working and testing with models can be safer, quicker, and less expensive than using the real thing. ~Models are used to make and test predictions.
Three limitations to models are ~Models cannot include all the details of the objects that they represent. ~Models do not behave exactly like the things they represent. ~In order to make models simplistic enough to communicate ideas some accuracy is lost.