(a) why is it difficult to present a picture of the solar system with both the planets and their separations shown to the correct scale? if you are stuck, try (b) first. (b) the diameter of the earth is 1/100 the diameter of the sun and there are about 100 sun-diameters between earth and the sun. if you make the earth the size of a peppercom (about 1/10 inch or 1/4 cm across) how big does your piece of paper need to be to also include the sun? if you need setting up the calculation, click on the "" button in the "food for thought" section of the unit 3 review section of the text. remember to explain what you are doing.