Wrap the large foam ball with yellow tissue paper, layering slightly to create a sun-like texture, then glue in place.
Paint the smaller foam balls as planets, adding simple color patterns and letting them dry fully.
Glue one planet to the end of each popsicle stick and write the planet names along the sticks.
Build the central column by stacking cardboard pieces, then glue it securely onto the round base.
Attach the labeled sticks around the column, spacing them evenly and arranging them in correct planetary order.