My Scale Universeby Tiny Space AdventuresUnderstanding the size of the universe is difficult, and trying to teach it is even harder. From the smallest fundamental particles to the largest celestial objects in our universe, bring it down to scale with these fun hands-on activities.This 90 page pack covers: Earth-Moon system, Solar System, Milky Way Galaxy and Universe. That's 15 activities at 50₵ each!Types of lessons include: scale models, worksheets, booklets, number lines and lots of math cal