Before you begin: you may either copy and paste this document into a word processing program of your choice or print this page. to complete the chart below: go back to the lesson on the historical models. list the characteristics or facts about the historical models. then use the information in this lesson to make a list of the characteristics or facts about the current model. look for similar characteristics and facts and place them in the center portion of the table. put the remaining different characteristics in the appropriate column. then, fill out the chart below. current model of the solar system vs. historical model of the solar system historical solar system model (differences) similarities current solar system model (differences) 1. 2. 3. 4. 1. 2. 3. 1. 2. 3. 4.