Showing posts from October, 2017

World Space Week: Make A Solar System Model

Want to build a solar system small enough to fit on your table?
Apparently, October 4-10th is World Space Week. I’ve never heard of it, but I found out this year thanks to an ever-helpful search engine home page. We’ve been on a bit of a space binge this year anyway, so this solar system was a big hit for my family.
To start, I used the link here ( to calculate the sizes of the various planets. I set the sun’s size to 17 inches, about the size of a basketball. Here’s what you’ll need to translate those sizes into a 3D solar system:
·Basketball ·Sesame seed ·Two pea seeds ·Peppercorn ·Tennis ball ·Hackeysack ·Two small marbles ·Even more sesame seeds, if you want to mark out moons for the various planets, or even the asteroid belt in between Mars and Jupiter
Once we laid out our solar system inside, we compared it with photos of the real planets. Did you know that the earth is about half the size of Jupiter’s red spot?
Then we gathered up our sun …