my little sister is doing a project so if anyone has an idea of how to build a solar SYSTEM but without using Styrofoam balls but so it can still be easy to make
Balloons of different sizes. Cover balloons with paper mache strips to make solid globes. See website for "Earth as a peppercorn" search on Google. Flags on a very long sidewalk showing where planets are in solar system (see the front walk of Griffith Observatory in Los Angeles). Big and small circles on paper showing planet sizes. Pencil or crayon colored pictures of planets.
