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This week, we will have a little look at the scale of the Solar System:


Either,  you can choose objects (which are spheres) to represent the different planets. Here are the size of the diameters of the planets. 

Mercury->4,878km                                       Venus->12,103km

Earth->12,756km                                         Mars-> 6,792km                             

Jupiter-> 138,346km                                   Saturn->120,536km

Uranus->51,118km                                        Neptune->49,500km


Or if it's easier you can fill out this sheet which will help you Mathematically scale the planets of the Solar System.