Illustration of LARGE NUMBERS

In helping my daughter with Gr 8 Science this past year she did "Rocks". Among the stats she was expected to learn was the "age" of Pre-Cambrian rocks. I am not a "creationist" but 600 million years is a BIG number and it started me thinking of how to illustrate it for myself, her and perhaps others!

So, here goes. (Remember, it has been just over two millennium's since the Death of Christ). I hope it helps!